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 and control module Audi Volkswagen Bosch 4B0614517H 0265225121 0265950054
Vendors's code: 4B0614517H
Product code: 90C2-64630
Barcode:
Code 39:
ISBN:
€162.60
Price
€162.60
€200.00
Price
€200.00
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ABS pump and control module Audi Volkswagen Bosch 4B0614517H 0265225121 0265950054
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How do you match ABS pump 4B0614517H to your car?
The easiest way is by number. This used, working Bosch unit for Audi and Volkswagen has VAG number 4B0 614 517 H and control module 0 265 950 054.
ABS pump 4B0614517H with Bosch module 0265950054 - Audi and VW
ABS units from this family look almost identical, and the differences lie in the markings. Our shop has one more version with the same base number but a different suffix letter - and it is that letter which may indicate a different version of the system. So with 4B0614517H, compare the full number, including the final H, as well as the Bosch number of the control module.
Numbers found on this item
- 4B0614517H - VAG number of the ABS pump (hydraulic unit), stamped: 4B0 614 517 H
- 0265225121 - Bosch number of the hydraulic block (pump), written: 0 265 225 121
- 0265950054 - Bosch number of the control module, on the label: 0 265 950 054
The pump numbers are stamped into the metal of the hydraulic block - sometimes they need cleaning before they can be read. You will find number 0 265 950 054 on the control module label, and the part's markings also include the text ‘ESP’.
What to watch for while driving
A damaged ABS pump or control module typically shows itself like this:
- the ABS and ESP warning lights come on together,
- ABS does not intervene under hard braking,
- the diagnostic tool shows a hydraulic pump fault.
First make sure the symptoms are not caused by a wheel speed sensor, a fuse, a chafed wiring loom or a loose connector - reading the fault memory and measuring battery voltage will help. After the unit is replaced, the brake system needs bleeding; coding the control module and calibrating the steering angle sensor are often required too.
Answers to frequent questions
| Which cars is this unit suitable for? |
|---|
| Audi and Volkswagen vehicles - provided the number in your car is 4B0 614 517 H. We do not list models, because the numbers decide. |
| Is the part working and covered by a warranty? |
| It is used, genuine and in working order. You can check the warranty period in the product features table. |
| Does the control module come with the pump? |
| Yes - we sell the complete unit: the block with pump plus the bolted-on Bosch module 0 265 950 054. |
| What are this unit's Bosch numbers for? |
| 0 265 225 121 identifies the hydraulic block (pump), and 0 265 950 054 the control module. They are useful as confirmation of the VAG number. |
If you are not certain, send a photo of the number stamped on the block or your car's VIN - we will gladly help you choose.
