{"product_id":"a0044318312-genuine-mercedes-benz®-anti-lock-abs-hydraulic-pump","title":"A0044318312 | Genuine Mercedes Benz® Anti Lock ABS Hydraulic Pump","description":"\u003cp\u003e\u003cstrong\u003eDescription: \u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003eAn Anti-Lock Brake System\u003cstrong\u003e A0044318312\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e(ABS) Hydraulic Pump—often just called the ABS pump—is a vital part of your car’s braking system. It works hand-in-hand with the ABS Pressure Modulator Valve to control brake fluid pressure during hard or emergency braking, helping prevent the wheels from locking up. The ABS hydraulic pump is responsible for restoring and maintaining brake fluid pressure in the braking system after the ABS modulator valve releases it during anti-lock operation. Anti Lock ABS Hydraulic Pump For E-Class (E320, E350, E500, E55 AMG), CLS-Class (CLS500, CLS55 AMG), SL-Class (SL500, SL550, SL55 AMG, SL600, SL65 AMG)\u003cbr\u003e\u003cstrong\u003e\u003cbr\u003ePart Number\u003c\/strong\u003e: A0044318312, 004-431-83-12, 0044318312\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: Remanufactured\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: Mercedes Benz\u003c\/span\u003e\u003cstrong data-start=\"160\" data-end=\"176\"\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eFits A0044318312\u003cspan\u003e \u003c\/span\u003eFor \u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\" data-col-size=\"sm\" data-end=\"360\" data-start=\"353\" style=\"width: 18.4189%;\"\u003eYear\u003c\/th\u003e\n\u003cth class=\"last:pe-10\" data-col-size=\"sm\" data-end=\"367\" data-start=\"360\" style=\"width: 24.378%;\"\u003eMake\u003c\/th\u003e\n\u003cth class=\"last:pe-10\" data-col-size=\"sm\" data-end=\"375\" data-start=\"367\" style=\"width: 22.2111%;\"\u003eModel\u003c\/th\u003e\n\u003cth class=\"last:pe-10\" data-col-size=\"sm\" data-end=\"385\" data-start=\"375\" style=\"width: 33.9486%;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"436\" data-start=\"420\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"435\" data-start=\"422\"\u003e2005–2006\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"452\" data-start=\"436\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"459\" data-start=\"452\" style=\"width: 22.2111%;\"\u003eE320\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"483\" data-start=\"459\" style=\"width: 33.9486%;\"\u003e3.2L Diesel, 3.2L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"500\" data-start=\"484\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"499\" data-start=\"486\"\u003e2005–2006\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"516\" data-start=\"500\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"523\" data-start=\"516\" style=\"width: 22.2111%;\"\u003eE350\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"534\" data-start=\"523\" style=\"width: 33.9486%;\"\u003e3.5L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"551\" data-start=\"535\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"550\" data-start=\"537\"\u003e2005–2006\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"567\" data-start=\"551\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"574\" data-start=\"567\" style=\"width: 22.2111%;\"\u003eE500\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"585\" data-start=\"574\" style=\"width: 33.9486%;\"\u003e5.0L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"602\" data-start=\"586\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"601\" data-start=\"588\"\u003e2005–2006\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"618\" data-start=\"602\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"628\" data-start=\"618\" style=\"width: 22.2111%;\"\u003eE55 AMG\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"639\" data-start=\"628\" style=\"width: 33.9486%;\"\u003e5.5L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"651\" data-start=\"640\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"650\" data-start=\"642\"\u003e2006\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"667\" data-start=\"651\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"676\" data-start=\"667\" style=\"width: 22.2111%;\"\u003eCLS500\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"687\" data-start=\"676\" style=\"width: 33.9486%;\"\u003e5.0L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"699\" data-start=\"688\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"698\" data-start=\"690\"\u003e2006\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"715\" data-start=\"699\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"727\" data-start=\"715\" style=\"width: 22.2111%;\"\u003eCLS55 AMG\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"738\" data-start=\"727\" style=\"width: 33.9486%;\"\u003e5.5L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"755\" data-start=\"739\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"754\" data-start=\"741\"\u003e2005–2008\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"771\" data-start=\"755\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"787\" data-start=\"771\" style=\"width: 22.2111%;\"\u003eSL500 \/ SL550\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"805\" data-start=\"787\" style=\"width: 33.9486%;\"\u003e5.0L \u0026amp; 5.5L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"822\" data-start=\"806\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"821\" data-start=\"808\"\u003e2005–2008\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"838\" data-start=\"822\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"849\" data-start=\"838\" style=\"width: 22.2111%;\"\u003eSL55 AMG\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"873\" data-start=\"849\" style=\"width: 33.9486%;\"\u003e5.5L Supercharged V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"890\" data-start=\"874\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"889\" data-start=\"876\"\u003e2005–2008\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"906\" data-start=\"890\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"914\" data-start=\"906\" style=\"width: 22.2111%;\"\u003eSL600\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"926\" data-start=\"914\" style=\"width: 33.9486%;\"\u003e5.5L V12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"943\" data-start=\"927\" style=\"width: 18.4189%;\"\u003e\u003cstrong data-end=\"942\" data-start=\"929\"\u003e2005–2008\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"959\" data-start=\"943\" style=\"width: 24.378%;\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"970\" data-start=\"959\" style=\"width: 22.2111%;\"\u003eSL65 AMG\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"992\" data-start=\"970\" style=\"width: 33.9486%;\"\u003e6.0L Twin-Turbo V12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003e\u003c\/strong\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003ePurpose of using A0044318312:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-end=\"421\" data-start=\"381\"\u003e1. \u003cstrong data-end=\"421\" data-start=\"388\"\u003eMaintain Brake Fluid Pressure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"618\" data-start=\"422\"\u003e\n\u003cli data-end=\"555\" data-start=\"422\"\u003e\n\u003cp data-end=\"555\" data-start=\"424\"\u003eThe hydraulic pump ensures that the brake system stays pressurized even when the ABS valves release pressure to prevent wheel lock.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"618\" data-start=\"556\"\u003e\n\u003cp data-end=\"618\" data-start=\"558\"\u003eWithout it, braking force would weaken during ABS operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"669\" data-start=\"625\"\u003e2. \u003cstrong data-end=\"669\" data-start=\"632\"\u003eRestore Pressure After Modulation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"856\" data-start=\"670\"\u003e\n\u003cli data-end=\"749\" data-start=\"670\"\u003e\n\u003cp data-end=\"749\" data-start=\"672\"\u003eWhen ABS reduces brake pressure to a wheel, some hydraulic fluid is diverted.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"856\" data-start=\"750\"\u003e\n\u003cp data-end=\"856\" data-start=\"752\"\u003eThe pump \u003cstrong data-end=\"791\" data-start=\"761\"\u003erebuilds and re-circulates\u003c\/strong\u003e that fluid back into the system, restoring full braking ability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"905\" data-start=\"863\"\u003e3. \u003cstrong data-end=\"905\" data-start=\"870\"\u003eEnsure Continuous ABS Operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1104\" data-start=\"906\"\u003e\n\u003cli data-end=\"973\" data-start=\"906\"\u003e\n\u003cp data-end=\"973\" data-start=\"908\"\u003eABS can pulse up to \u003cstrong data-end=\"951\" data-start=\"928\"\u003e15 times per second\u003c\/strong\u003e during heavy braking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1104\" data-start=\"974\"\u003e\n\u003cp data-end=\"1104\" data-start=\"976\"\u003eThe pump provides the hydraulic flow and pressure needed for this rapid modulation — ensuring smooth, consistent braking cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1146\" data-start=\"1111\"\u003e4. \u003cstrong data-end=\"1146\" data-start=\"1118\"\u003ePrevent Brake Pedal Drop\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1336\" data-start=\"1147\"\u003e\n\u003cli data-end=\"1268\" data-start=\"1147\"\u003e\n\u003cp data-end=\"1268\" data-start=\"1149\"\u003eWithout a functioning pump, the brake pedal might feel \u003cstrong data-end=\"1252\" data-start=\"1204\"\u003espongy, sink too low, or vibrate excessively\u003c\/strong\u003e during ABS use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1336\" data-start=\"1269\"\u003e\n\u003cp data-end=\"1336\" data-start=\"1271\"\u003eThe pump maintains firm pedal pressure for better driver control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1379\" data-start=\"1343\"\u003e5. \u003cstrong data-end=\"1379\" data-start=\"1350\"\u003eImprove Vehicle Stability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1551\" data-start=\"1380\"\u003e\n\u003cli data-end=\"1551\" data-start=\"1380\"\u003e\n\u003cp data-end=\"1551\" data-start=\"1382\"\u003eBy maintaining even hydraulic pressure across all wheels, the pump helps the ABS system prevent \u003cstrong data-end=\"1495\" data-start=\"1478\"\u003eside skidding\u003c\/strong\u003e and \u003cstrong data-end=\"1519\" data-start=\"1500\"\u003eloss of control\u003c\/strong\u003e on slippery or uneven surfaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1609\" data-start=\"1558\"\u003e6. \u003cstrong data-end=\"1609\" data-start=\"1565\"\u003eEnable Steering During Emergency Braking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1804\" data-start=\"1610\"\u003e\n\u003cli data-end=\"1651\" data-start=\"1610\"\u003e\n\u003cp data-end=\"1651\" data-start=\"1612\"\u003eWhen wheels lock up, you can’t steer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1804\" data-start=\"1652\"\u003e\n\u003cp data-end=\"1804\" data-start=\"1654\"\u003eThe hydraulic pump allows ABS to quickly modulate pressure, keeping the wheels rolling slightly so the driver can \u003cstrong data-end=\"1803\" data-start=\"1768\"\u003esteer safely while braking hard\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1865\" data-start=\"1811\"\u003e7. \u003cstrong data-end=\"1865\" data-start=\"1818\"\u003eEnhance Stopping Distance on Slippery Roads\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2015\" data-start=\"1866\"\u003e\n\u003cli data-end=\"2015\" data-start=\"1866\"\u003e\n\u003cp data-end=\"2015\" data-start=\"1868\"\u003eThe pump helps ABS apply \u003cstrong data-end=\"1918\" data-start=\"1893\"\u003emaximum safe pressure\u003c\/strong\u003e to each wheel without locking it up — shortening stopping distance on wet, icy, or gravel roads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2069\" data-start=\"2022\"\u003e8. \u003cstrong data-end=\"2069\" data-start=\"2029\"\u003eSupport Other Vehicle Safety Systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2136\" data-start=\"2070\"\u003eModern cars use the ABS pump for more than just anti-lock braking:\u003c\/p\u003e\n\u003cul data-end=\"2495\" data-start=\"2137\"\u003e\n\u003cli data-end=\"2265\" data-start=\"2137\"\u003e\n\u003cp data-end=\"2265\" data-start=\"2139\"\u003e\u003cstrong data-end=\"2173\" data-start=\"2139\"\u003eTraction Control System (TCS):\u003c\/strong\u003e Uses the pump to apply brakes to a spinning wheel and transfer power to wheels with grip.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2388\" data-start=\"2266\"\u003e\n\u003cp data-end=\"2388\" data-start=\"2268\"\u003e\u003cstrong data-end=\"2307\" data-start=\"2268\"\u003eElectronic Stability Control (ESC):\u003c\/strong\u003e Uses the pump to individually brake wheels to correct oversteer or understeer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2495\" data-start=\"2389\"\u003e\n\u003cp data-end=\"2495\" data-start=\"2391\"\u003e\u003cstrong data-end=\"2441\" data-start=\"2391\"\u003eHill-Start Assist \u0026amp; Automatic Braking Systems:\u003c\/strong\u003e Also depend on the pump for quick hydraulic pressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2551\" data-start=\"2502\"\u003e9. \u003cstrong data-end=\"2551\" data-start=\"2509\"\u003eMaintain Equal Pressure Between Wheels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2693\" data-start=\"2552\"\u003e\n\u003cli data-end=\"2693\" data-start=\"2552\"\u003e\n\u003cp data-end=\"2693\" data-start=\"2554\"\u003eThe pump helps distribute pressure evenly to all wheels, especially when road conditions vary (like ice on one side, asphalt on the other).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2743\" data-start=\"2700\"\u003e10. \u003cstrong data-end=\"2743\" data-start=\"2708\"\u003eReduce Wear on Brake Components\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2913\" data-start=\"2744\"\u003e\n\u003cli data-end=\"2913\" data-start=\"2744\"\u003e\n\u003cp data-end=\"2913\" data-start=\"2746\"\u003eBy preventing wheel lock and skidding, the pump reduces \u003cstrong data-end=\"2824\" data-start=\"2802\"\u003etire flat-spotting\u003c\/strong\u003e, \u003cstrong data-end=\"2847\" data-start=\"2826\"\u003ebrake pad glazing\u003c\/strong\u003e, and \u003cstrong data-end=\"2869\" data-start=\"2853\"\u003erotor stress\u003c\/strong\u003e — improving overall brake system longevity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2980\" data-start=\"2920\"\u003e11. \u003cstrong data-end=\"2980\" data-start=\"2928\"\u003eProvide Backup Pressure During Emergency Braking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"3144\" data-start=\"2981\"\u003e\n\u003cli data-end=\"3144\" data-start=\"2981\"\u003e\n\u003cp data-end=\"3144\" data-start=\"2983\"\u003eIf the driver suddenly applies full brake force, the pump ensures the system can supply enough pressure instantly to all wheels without losing hydraulic balance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-start=\"585\" data-end=\"703\"\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of a\u003c\/strong\u003e \u003cstrong\u003eBad\u003c\/strong\u003e \u003cstrong\u003eAnti Lock ABS Hydraulic Pump \u003cspan\u003eAA0044318312 \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp data-start=\"339\" data-end=\"372\"\u003e\u003cstrong data-start=\"345\" data-end=\"372\"\u003e1. ABS Warning Light On\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"373\" data-end=\"690\"\u003e\n\u003cli data-start=\"373\" data-end=\"425\"\u003e\n\u003cp data-start=\"375\" data-end=\"425\"\u003eThe \u003cstrong data-start=\"379\" data-end=\"392\"\u003eABS light\u003c\/strong\u003e illuminates on your dashboard.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"426\" data-end=\"469\"\u003e\n\u003cp data-start=\"428\" data-end=\"469\"\u003eThis is the most common and early sign.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"470\" data-end=\"609\"\u003e\n\u003cp data-start=\"472\" data-end=\"609\"\u003eIt means the ABS control module has detected a fault — often with the \u003cstrong data-start=\"542\" data-end=\"556\"\u003epump motor\u003c\/strong\u003e, \u003cstrong data-start=\"558\" data-end=\"572\"\u003epump relay\u003c\/strong\u003e, or \u003cstrong data-start=\"577\" data-end=\"606\"\u003einternal pressure circuit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"610\" data-end=\"690\"\u003e\n\u003cp data-start=\"612\" data-end=\"690\"\u003eThe vehicle may still brake normally, but \u003cstrong data-start=\"654\" data-end=\"674\"\u003eABS won’t engage\u003c\/strong\u003e in emergencies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"697\" data-end=\"744\"\u003e\u003cstrong data-start=\"703\" data-end=\"744\"\u003e2. Wheels Lock Up During Hard Braking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"745\" data-end=\"1014\"\u003e\n\u003cli data-start=\"745\" data-end=\"803\"\u003e\n\u003cp data-start=\"747\" data-end=\"803\"\u003eThe ABS pump helps maintain brake pressure modulation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"804\" data-end=\"910\"\u003e\n\u003cp data-start=\"806\" data-end=\"910\"\u003eIf it fails, the ABS can’t control pressure properly — causing \u003cstrong data-start=\"869\" data-end=\"887\"\u003ewheels to lock\u003c\/strong\u003e when you brake hard.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"911\" data-end=\"1014\"\u003e\n\u003cp data-start=\"913\" data-end=\"1014\"\u003eYou’ll notice \u003cstrong data-start=\"927\" data-end=\"955\"\u003eloss of steering control\u003c\/strong\u003e and possibly \u003cstrong data-start=\"969\" data-end=\"981\"\u003eskidding\u003c\/strong\u003e, especially on wet or icy roads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1021\" data-end=\"1075\"\u003e\u003cstrong data-start=\"1027\" data-end=\"1075\"\u003e3. ABS Pump Running Constantly or Not at All\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1076\" data-end=\"1414\"\u003e\n\u003cli data-start=\"1076\" data-end=\"1176\"\u003e\n\u003cp data-start=\"1078\" data-end=\"1176\"\u003eNormally, the ABS pump activates \u003cstrong data-start=\"1111\" data-end=\"1138\"\u003eonly when ABS is needed\u003c\/strong\u003e (for example, during hard braking).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1177\" data-end=\"1414\"\u003e\n\u003cp data-start=\"1179\" data-end=\"1251\"\u003eA faulty relay, internal short, or stuck solenoid can cause the pump to:\u003c\/p\u003e\n\u003cul data-start=\"1254\" data-end=\"1414\"\u003e\n\u003cli data-start=\"1254\" data-end=\"1343\"\u003e\n\u003cp data-start=\"1256\" data-end=\"1343\"\u003e\u003cstrong data-start=\"1256\" data-end=\"1276\"\u003eRun continuously\u003c\/strong\u003e — even when not braking (you may hear a constant humming sound).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1346\" data-end=\"1414\"\u003e\n\u003cp data-start=\"1348\" data-end=\"1414\"\u003eOr \u003cstrong data-start=\"1351\" data-end=\"1373\"\u003efail to run at all\u003c\/strong\u003e, meaning ABS won’t activate when needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1421\" data-end=\"1472\"\u003e\u003cstrong data-start=\"1427\" data-end=\"1472\"\u003e4. Brake Pedal Feels Hard or Unresponsive\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1473\" data-end=\"1679\"\u003e\n\u003cli data-start=\"1473\" data-end=\"1579\"\u003e\n\u003cp data-start=\"1475\" data-end=\"1579\"\u003eIf the pump fails to build or circulate pressure, the \u003cstrong data-start=\"1529\" data-end=\"1559\"\u003ebrake pedal can feel stiff\u003c\/strong\u003e or hard to press.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1580\" data-end=\"1679\"\u003e\n\u003cp data-start=\"1582\" data-end=\"1679\"\u003eThis happens when the hydraulic pressure isn’t being properly boosted or balanced during braking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1686\" data-end=\"1743\"\u003e\u003cstrong data-start=\"1692\" data-end=\"1743\"\u003e5. Brake Pedal Feels Soft or Sinks to the Floor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1744\" data-end=\"1949\"\u003e\n\u003cli data-start=\"1744\" data-end=\"1860\"\u003e\n\u003cp data-start=\"1746\" data-end=\"1860\"\u003eIn some cases, the opposite happens — the pump can’t maintain pressure, causing a \u003cstrong data-start=\"1828\" data-end=\"1857\"\u003esoft or spongy pedal feel\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1861\" data-end=\"1949\"\u003e\n\u003cp data-start=\"1863\" data-end=\"1949\"\u003eThis may also indicate \u003cstrong data-start=\"1886\" data-end=\"1912\"\u003einternal fluid leakage\u003c\/strong\u003e or \u003cstrong data-start=\"1916\" data-end=\"1948\"\u003eair inside the ABS pump unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1956\" data-end=\"2003\"\u003e\u003cstrong data-start=\"1962\" data-end=\"2003\"\u003e6. Unusual Noises from the Engine Bay\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2004\" data-end=\"2290\"\u003e\n\u003cli data-start=\"2004\" data-end=\"2118\"\u003e\n\u003cp data-start=\"2006\" data-end=\"2118\"\u003eYou might hear \u003cstrong data-start=\"2021\" data-end=\"2061\"\u003ebuzzing, humming, or grinding noises\u003c\/strong\u003e when braking or shortly after turning on the ignition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2119\" data-end=\"2194\"\u003e\n\u003cp data-start=\"2121\" data-end=\"2194\"\u003eA short “buzz” when you first start the car is normal (pump self-test).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2195\" data-end=\"2290\"\u003e\n\u003cp data-start=\"2197\" data-end=\"2290\"\u003eBut \u003cstrong data-start=\"2201\" data-end=\"2231\"\u003econtinuous or harsh noises\u003c\/strong\u003e suggest the pump motor or internal valves are wearing out.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2297\" data-end=\"2341\"\u003e\u003cstrong data-start=\"2303\" data-end=\"2341\"\u003e7. Brake Fluid Leaks Near ABS Unit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2342\" data-end=\"2587\"\u003e\n\u003cli data-start=\"2342\" data-end=\"2490\"\u003e\n\u003cp data-start=\"2344\" data-end=\"2490\"\u003eThe ABS pump is part of the hydraulic circuit — any cracks, worn seals, or internal corrosion can lead to \u003cstrong data-start=\"2450\" data-end=\"2465\"\u003efluid leaks\u003c\/strong\u003e around the ABS module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2491\" data-end=\"2587\"\u003e\n\u003cp data-start=\"2493\" data-end=\"2587\"\u003eLow brake fluid levels can trigger the \u003cstrong data-start=\"2532\" data-end=\"2555\"\u003ebrake warning light\u003c\/strong\u003e and reduce braking performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2594\" data-end=\"2645\"\u003e\u003cstrong data-start=\"2600\" data-end=\"2645\"\u003e8. Stored Diagnostic Trouble Codes (DTCs)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2646\" data-end=\"2968\"\u003e\n\u003cli data-start=\"2646\" data-end=\"2889\"\u003e\n\u003cp data-start=\"2648\" data-end=\"2746\"\u003eWhen scanned with a \u003cstrong data-start=\"2668\" data-end=\"2687\"\u003ediagnostic tool\u003c\/strong\u003e, codes related to the pump or motor may appear, such as:\u003c\/p\u003e\n\u003cul data-start=\"2749\" data-end=\"2889\"\u003e\n\u003cli data-start=\"2749\" data-end=\"2793\"\u003e\n\u003cp data-start=\"2751\" data-end=\"2793\"\u003e\u003ccode data-start=\"2751\" data-end=\"2758\"\u003eC0110\u003c\/code\u003e – ABS Pump Motor Circuit Failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2796\" data-end=\"2832\"\u003e\n\u003cp data-start=\"2798\" data-end=\"2832\"\u003e\u003ccode data-start=\"2798\" data-end=\"2805\"\u003eC0265\u003c\/code\u003e – Pump Motor Relay Fault\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2835\" data-end=\"2889\"\u003e\n\u003cp data-start=\"2837\" data-end=\"2889\"\u003e\u003ccode data-start=\"2837\" data-end=\"2844\"\u003eC1214\u003c\/code\u003e – Hydraulic Pump Motor Circuit Malfunction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2890\" data-end=\"2968\"\u003e\n\u003cp data-start=\"2892\" data-end=\"2968\"\u003eThese confirm electrical or mechanical failure inside the ABS pump assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2975\" data-end=\"3034\"\u003e\u003cstrong data-start=\"2981\" data-end=\"3034\"\u003e9. Reduced Stability or Traction Control Function\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3035\" data-end=\"3260\"\u003e\n\u003cli data-start=\"3035\" data-end=\"3109\"\u003e\n\u003cp data-start=\"3037\" data-end=\"3109\"\u003eModern vehicles use the ABS pump for systems like \u003cstrong data-start=\"3087\" data-end=\"3094\"\u003eESC\u003c\/strong\u003e and \u003cstrong data-start=\"3099\" data-end=\"3106\"\u003eTCS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3110\" data-end=\"3260\"\u003e\n\u003cp data-start=\"3112\" data-end=\"3260\"\u003eIf the pump fails, you may also see \u003cstrong data-start=\"3148\" data-end=\"3174\"\u003eTraction Control (TCS)\u003c\/strong\u003e or \u003cstrong data-start=\"3178\" data-end=\"3205\"\u003eStability Control (ESC)\u003c\/strong\u003e lights on, and the car may lose those safety features.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-start=\"97\" data-end=\"476\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"42\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"0\" data-end=\"42\"\u003eAbout the Manufacturer – Mercedes-Benz\u003c\/strong\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"44\" data-end=\"474\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"44\" data-end=\"61\"\u003eMercedes-Benz\u003c\/strong\u003e is a world-renowned German automotive manufacturer founded in \u003cstrong data-start=\"124\" data-end=\"132\" data-is-only-node=\"\"\u003e1926\u003c\/strong\u003e. A division of \u003cstrong data-start=\"148\" data-end=\"174\"\u003eMercedes-Benz Group AG\u003c\/strong\u003e, the company is recognized for producing luxury passenger cars, commercial vehicles, buses, and advanced automotive technologies. Mercedes-Benz is known for its commitment to quality, innovation, safety, and engineering excellence, making it one of the most respected automotive brands in the world.\u003c\/p\u003e","brand":"Mercedes Benz","offers":[{"title":"Default Title","offer_id":50974082826487,"sku":"A0044318312","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/fe429fab-2bd5-40c2-b7a4-aa7bfd391fbc_a3bfbab9-c298-4cf9-9e57-bae73ed007e3.png?v=1785133691","url":"https:\/\/forcetruckparts.com\/products\/a0044318312-genuine-mercedes-benz%c2%ae-anti-lock-abs-hydraulic-pump","provider":"Force Truck Parts","version":"1.0","type":"link"}