Is it dangerous to drive with a faulty CAS module?

This typically prevents starting entirely rather than creating a driving hazard, but if it causes intermittent loss of power while driving, that would be dangerous — have this diagnosed promptly either way.

Can a used CAS module be fitted from another vehicle?

This requires careful matching and specialist programming — sourcing and fitting the wrong module or one not properly synchronised can leave the vehicle unable to start.

What is the module made of?

A sealed electronic circuit board with secure key-authentication circuitry.

How do I check whether CAS control unit BMW 330D E91 2008 TOURING fits my vehicle?

Compare OEM reference 6135914719501 2072123174, the listed vehicle (BMW 3 E91 2005-2008), connectors, mounting points and the photographs for this exact item.

What is the condition of CAS control unit BMW 330D E91 2008 TOURING?

Listed condition: Used. Current availability: 1 in stock - ready to ship. Review the item photographs and any stated defects as well.

How is CAS control unit BMW 330D E91 2008 TOURING delivered and returned?

Available delivery methods, timing and price for your country are shown in the cart. Review the applicable 14-day return terms before ordering.

CAS control unit BMW 330D E91 2008 TOURING

Name: CAS control unit BMW 330D E91 2008 TOURING
Brand: BMW
SKU: 6135914719501 2072123174
Price: 27.00 EUR
Availability: InStock

OEM: 6135914719501 2072123174

Disassembled car photo

Engine running

Tested before shipping
Guaranteed quality
Fast delivery 3–7 days
14-day returns

Details for this exact part

Code: 6135914719501 2072123174
OEM: 6135914719501 2072123174
Condition: Used
Availability: 1 in stock - ready to ship
Make, model: BMW 3 E91 2005-2008
Year: 2007
Engine: Diesel 3,0L 145kW 3000CC M57N2
VIN: WBAVU71030KG91501

What is this part and why does it matter?

The CAS (Car Access System) module manages keyless entry, ignition authorisation, and the immobiliser function on many BMW and compatible vehicles.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

Vehicle won’t recognise the key or start
Central locking or keyless entry not functioning
Diagnostic fault code related to the module itself

Installation information

Mounted in the dashboard or engine bay, connecting to the vehicle wiring harness — requires specialist programming to match the specific key(s) after replacement.

Frequently asked questions

This module is deeply tied to the vehicle’s security system and often needs to be synchronised with the engine control unit and specific keys, requiring specialist diagnostic equipment and, in some cases, dealer involvement.

Donor vehicle description

VIN: WBAVU71030KG91501
Make, model: BMW 330
Year: 2007
Engine: Diesel 3,0L 145kW 3000CC M57N2
Transmission: Automatic
Drive: HECK
Equipment: LHD
Colour: SPARKLING GRAPHITE METALLIC (A22)

256 parts from this car

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August 2026
Super good! They came through with the part I needed, quickly and at a fair price! Thanks, and I definitely recommend!
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August 2026
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Aleksandr L.
Toyota Avensis
August 2026
No complaints about Evro Trans itself, everything's fine. But the delivery..... It felt like the order was being carried by turtles. 4 days from Riga to Daugavpils. Judging by the tracking, the parcel just sat somewhere behind a shed for 3 days, then they found it and delivered it the next day. I think that's why I won't be ordering there again.
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Paul F.
June 2026
Super fast delivery of the part, and good quality of the used part. Thanks for the service.
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May 2026
I ordered antifreeze heaters and an auxiliary pump. Everything arrived quickly, the very next day, and matched the description. I'm satisfied.
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February 2026
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November 2025
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Front fender
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