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 Bosch 0265295805 0265957201 A9079007406
Vendors's code: 0265957201
Product code: B181-43908
Barcode:
Code 39:
ISBN:
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Where to find number 0265295805 on Mercedes ABS pumps
ABS pump 0265295805 complete with control unit, used and inspected. Compare the numbers with the original in your car.
Used Mercedes ABS pump with number 0265295805
The hydraulic block and control unit of this ABS pump form a single module that works with the wheel speed sensors in Mercedes cars. You will find number 0265295805 on the label, and the full set of numbers is given in the description below. The listing does not state the car model or year, so we do not give them here and match the part by its numbers.
Numbers and markings on the ABS pump
You will find the numbers on the labels, while catalogues list them as a single string:
- 0 265 295 805 (catalogue format: 0265295805), hydraulic block manufacturer's number,
- 0 265 957 201 (catalogue format: 0265957201), control unit number,
- A 907 900 74 06 (catalogue format: A9079007406), Mercedes control unit number.
The full numbers matter, including their endings. If in doubt, send us a photo of your pump.
What ABS problems can point to
- 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 activates for no reason during normal braking,
- brake fluid leaks from the hydraulic block, which requires immediate action.
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
| Are the make and model of the car enough to choose the part? |
|---|
| No. A single model comes with different versions of the module, depending on the engine, year of manufacture and drivetrain. The most reliable reference is the number on the original pump. |
| 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. |
| Who makes this module? |
| The module is made by Bosch. The manufacturer's name does not change the numbers you should use to match the part. |
| 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 sure about the match? Send us a photo of the numbers on your ABS pump and we will check whether this module will fit.