The automatic transmission control unit (often designated as TCU or TCM) is a crucial electronic component responsible for smooth and trouble-free gear shifting. Its failure, most often caused by overheating, short circuits, or water damage, results in jerking, an inability to shift gears, or the vehicle entering limp mode. Purchasing a new module at an authorized dealership is a massive expense, which is why replacing it with a fully functional, used original is the most reasonable solution.
ABS pump and control module Audi Bosch 4E0614517BC 0265225294 4E0910517B 0265950135
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Product code: 21B3-40761
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Code 39:
ISBN:
€569.11
Price
€569.11
€700.00
Price
€700.00
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ABS pump and control module Audi Bosch 4E0614517BC 0265225294 4E0910517B 0265950135
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What should you look for in the markings of ABS pump 4E0614517BC?
Number 4E0 614 517 BC is stamped directly into the aluminium hydraulic block, right next to Bosch marking 0 265 225 294. The item comes from an Audi, is used and working, and is sold with control module 4E0 910 517 B – match it by setting these markings against your own part.
Bosch 4E0614517BC – ABS hydraulic unit with control module 4E0910517B
During hard braking, control module 4E0 910 517 B continuously compares the speeds of the individual wheels, as read by the sensors, and recognises the moment one of them stops rolling. The valves in block 4E0614517BC then release a little pressure from that wheel's circuit, after which the pump motor quickly restores it. The tyre regains grip and the car stays steerable even with the pedal pressed hard. This whole cycle takes place in a single component, which we offer complete with its electronic module.
Markings stamped in the block and on the module label
- 4E0614517BC – VAG number of the ABS pump (hydraulic unit) – stamped into the metal of the block: 4E0 614 517 BC
- 0265225294 – Bosch number of the hydraulic block (pump) – marking 0 265 225 294, also stamped into the aluminium
- 4E0910517B – VAG number of the ABS/ESP control module – the module label gives 4E0 910 517 B
- 0265950135 – Bosch number of the control module – 0 265 950 135 on the same label
Do not look for the pump numbers on a sticker – they are stamped into the aluminium body, near the ports marked HZ1, HZ2, VL, VR, HL and HR. The control module details are printed on a label stuck to the module. The shop has 2 other versions of this pump that differ in suffix, so compare the letters BC at the end of the number especially carefully.
When this hydraulic unit may be to blame
Damage to the hydraulic unit or the module usually shows up as:
- ABS and ESP/ASR disabled at the same moment,
- a fault code for one of the valves,
- an ABS lamp that lights up on start-up and stays on.
Before you unbolt the old part, check the stored codes with a diagnostic tool and eliminate the mundane sources of trouble – a wheel speed sensor, a fuse, a loose connector or a flat battery. Once the unit is in place, the brakes must be bled; the control module often needs coding, and on cars with ESP the steering angle sensor is usually set up again after replacement.
FAQ – Bosch pump 4E0614517BC
| Which car does this pump come from? |
|---|
| From an Audi. We do not name the specific model, because the fit is determined by number 4E0 614 517 BC and the module number matching the markings on your part. |
| Is this unit in working order? |
| Yes – it is a genuine, used Bosch component in working condition. The warranty period is given in the product features table. |
| My number ends differently from BC – is that a problem? |
| It could be. A different letter in the VAG number may indicate a different system design, so it is safer to go for an item with an identical suffix. |
| How can I confirm compatibility before ordering? |
| Photograph the numbers stamped into the body of your pump and the module label, or give us your VIN, and we will check them against the markings on this item. |
Send us a shot of the numbers on your pump's block or your VIN, and we will reply telling you whether this unit is right for you.
