Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
61 31 156 Removing And Installing (Replacing) Control Unit In Center Armrest At Rear
For Special Tool identification, see MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .
Special Tools Required:Β
- 00 9 341
Lever out front oddments tray (1) in direction of arrow and remove.
Version With Eject Box Only:Β
Remove eject box. Refer to 84 11 615 REMOVING AND INSTALLING/REPLACING EJECT BOX (IN REAR CENTER ARMREST) .
Version With Center Armrest Storage Tray (2) Only:Β
Attach special tools 00 9 341 as illustrated.
Unclip oddments tray in center armrest (2) in direction of arrow and remove.
Disconnect plug connection (1).
Release screws (2).
Pull back control unit in center armrest at rear (3), lift at front and feed out towards top.
Unlock covers (1) and fold up.
Disconnect all ribbon cables (2).
Remove control unit in center armrest at rear (3).
Replacement:Β
Carry out coding/programming.
Observe following IDC specifications:
- Programming.
- Coding.
- Car & Key Memory.
- CD "CIP".
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.
