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 ATE A2044315312 A2045454132
Vendors's code: A2044315312
Product code: A2045454132
Barcode:
Code 39:
ISBN:
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Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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When is ABS pump A2044315312 the right choice for your Mercedes?
ABS pump A2044315312 complete with control unit, used and inspected. Compare the numbers with the original in your car.
Mercedes ABS pump A2044315312: hydraulic module with control unit
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 A2044315312 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
The numbers from the listing, as written on the labels and as a single string:
- A 204 431 53 12 (catalogue format: A2044315312), Mercedes number stamped on the hydraulic block,
- A 204 545 41 32 (catalogue format: A2045454132), Mercedes control unit number.
Compare the numbers with the original pump in your car, and if any of them differs, write to us before buying.
When an ABS module needs replacing
- the ABS activates for no reason during normal braking,
- brake fluid leaks from the hydraulic block, which requires immediate action,
- the ABS warning light comes on together with the stability control warning light,
- the ABS switches itself off shortly after the engine is started.
Before buying a module, read the fault codes with a diagnostic tester. A faulty wheel speed sensor or its wiring can cause the same symptoms, and in that case replacing the pump will not help. After replacement the fault codes usually need to be cleared, and if the brake lines have been disconnected, the system must be bled.
Questions and answers
| Which car model does this pump fit? |
|---|
| The listing does not state a model or year, so confirm compatibility with the number from the original pump in your car, or send us a photo of it. |
| 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. |
| Is this a new part? |
| No. We sell used original modules, each one 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.