A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
ABS pump Mercedes W211 Bosch A2114312712 0265250251 0265960322
Vendors's code: 0265960322
Product code: A2114312712
Barcode:
Code 39:
ISBN:
€121.95
Price
€121.95
€150.00
Price
€150.00
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ABS pump Mercedes W211 Bosch A2114312712 0265250251 0265960322
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What does number A2114312712 on an ABS pump mean?
ABS pump A2114312712 complete with control unit, used and inspected. Compare the numbers with the original in your car.
Used Mercedes W211 ABS pump with number A2114312712
If the ABS warning light is on in your Mercedes W211, one possible cause is the hydraulic module or its control unit. ABS pump A2114312712 is a used original part, inspected before sale. According to the listing, the pump comes from the Mercedes W211 model.
Numbers to compare
The numbers as written on the labels and as a single string, the way catalogues list them:
- A 211 431 27 12 (catalogue format: A2114312712), Mercedes number stamped on the hydraulic block,
- 0 265 250 251 (catalogue format: 0265250251), hydraulic block manufacturer's number,
- 0 265 960 322 (catalogue format: 0265960322), control unit number.
Check the numbers on your pump and compare them with those above. If any of them differs, contact us before ordering.
Symptoms of a faulty ABS pump or control unit
- the ABS warning light comes on after the engine is started and stays on,
- the ABS activates for no reason during normal braking,
- the ABS warning light comes on together with the stability control warning light,
- the ABS switches itself off shortly after the engine is started.
First check the wheel sensors, their wiring and the supply voltage. Only a fault code pointing to the module justifies replacing the pump. After fitting, clear the fault codes and, if necessary, bleed the brake system.
Questions and answers
| Where do I find number A2114312712 on my pump? |
|---|
| The numbers are stamped or printed on the aluminium hydraulic block, and the control unit has a separate sticker. Take a close-up photo of both places in good light. |
| Are the pump and the control unit sold separately? |
| In this listing they are a single module: a hydraulic block with the pump and valves, with the control unit attached to it. |
| Does a lit ABS warning light always mean a faulty pump? |
| No. Read the fault codes first, because the cause may be a wheel sensor, its wiring or too low a supply voltage. |
| What condition is this ABS module in? |
| It is an original recycled part in good condition, checked by us. Warranty details are in the product features table. |
Want to check before you buy? Send a photo of the block and sticker on your ABS pump and we will check that the numbers match.
