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 W210 Bosch A0034313012 0265217401 0130108068
Vendors's code: 0265217401
Product code: A0034313012
Barcode:
Code 39:
ISBN:
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Where to find number A0034313012 on Mercedes ABS pumps
Used original ABS module with number A0034313012 for Mercedes W210. Confirm compatibility with the number from your original pump.
Used Mercedes W210 ABS pump with number A0034313012
This module is made by Bosch. ABS pump A0034313012 is sold together with its control unit, just as it is fitted to Mercedes cars. According to the listing, the pump comes from the Mercedes W210 model.
Numbers to compare
The numbers from the listing, as written on the labels and as a single string:
- A 003 431 30 12 (catalogue format: A0034313012), Mercedes number stamped on the hydraulic block,
- 0 265 217 401 (catalogue format: 0265217401), hydraulic block manufacturer's number,
- 0 130 108 068 (catalogue format: 0130108068), number stamped on the hydraulic block.
Check the numbers on your pump and compare them with those above. If any of them differs, contact us before ordering.
What ABS problems can point to
- the ABS warning light comes on after the engine is started and stays on,
- valve or pump motor faults are stored in the control unit memory,
- the pump motor switches on at unusual moments or runs louder than usual,
- on a slippery surface the wheels lock up noticeably sooner than they used to.
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 A0034313012 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. |
| 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. |
| Do the brakes need bleeding after replacing the module? |
| If the brake lines are disconnected during fitting, the system must be bled. The fault codes in the control unit usually need to be cleared as well. |
| What condition is this pump in? |
| It is a used original part, inspected before sale. You will find the warranty period in the product features table. |
Want to be certain? Send us the numbers from the block and sticker on your ABS pump, and together we will check whether this part will fit.