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 W168 Bosch A0034317412 0265202433 0130108068
Vendors's code: 0130108068
Product code: 0265202433
Barcode:
Code 39:
ISBN:
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When is ABS pump A0034317412 the right choice for your Mercedes W168?
ABS pump A0034317412 complete with control unit, used and inspected. Compare the numbers with the original in your car.
Is ABS pump A0034317412 the right part for your Mercedes?
This module is made by Bosch. ABS pump A0034317412 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 W168 model.
Numbers to compare
You will find the numbers on the labels, while catalogues list them as a single string:
- A 003 431 74 12 (catalogue format: A0034317412), Mercedes number stamped on the hydraulic block,
- 0 265 202 433 (catalogue format: 0265202433), 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.
Symptoms of a faulty ABS pump or control unit
- the brake pedal pulses or feels uneven for no obvious reason,
- the pump motor switches on at unusual moments or runs louder than usual,
- the ABS warning light comes on together with the stability control warning light,
- on a slippery surface the wheels lock up noticeably sooner than they used to.
ABS faults should not be ignored, because without anti-lock protection the car brakes less well on wet or slippery roads. Diagnosis and fitting are best left to a garage with a suitable scanner.
Questions and answers
| What is the difference between numbers A0034317412 and 0265202433? |
|---|
| One of the numbers is stamped on the hydraulic block, while the other comes from the module manufacturer or from the control unit sticker. When matching the part, compare all the numbers. |
| 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. |
| Can I send a photo for a compatibility check? |
| Yes. Contact us and send a photo of the numbers on your original pump, and we will help you check whether this module will fit. |
| 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. |
Not certain this is the right module? Send us the numbers from the label on your pump and we will help you compare them.