I can't get the roof down. It's absolutely dead! I don't even get the warning messages in the dash if the "lid" is open or even if the boot lid is open!
Doing a DAS read gives quite a lot of issues:
One of the first things I did was to take the boot appart (trunk partition, carpets etc - including that rear plastic panel where the switch for the roof/trunk partition) so that I could get to the chock absorbers top mount when I replaced them with YSRs.
I've been racking my brain about what I could have done (or not done!) to affect this, but in truth "all" I've done (other than retrofiting YSRs) is replace bushings in suspension arms and rear subframe, spark plugs, ignition coils and leads as well as replaced all oils in the car (except power steering, haven't gotten to that yet, and the roof hydralics).
Now, looking at that list above, the error is almost in all modules, so I started thinking about ANOTHER problem I'm having. The ABS/ESP isn't working.
The reason for that shows itself in DAS as:
![Image]()
Both those left ones ("bottom-left" two in the picture) goes to the right wheel and that left-most one is the one I couldn't put back in. It just refused after only a milimeter or two. Not sure why, could be the pins not going in the holes, but it all LOOKS fine! I'm going to try again as soon as the weather gets warmer, it's almost 100 miles to the garage where I used to work and have it stored over the winter so don't want to go there unless I have to..
However, because "things" leads to other "things" (as we can see from the cascade of errors all over the place!), COULD this be the cause of the VR issues as well? Although that wouldn't explain why DAS can't find the module.. Unless this connector I can't get back in causes .. "compound errors" on the CAN bus??
I'm struggling to understand (or accept!) why the VR module "just broke" like that.. But because there's been so much work going on over six months or so, I don't even know where to begin to unravel this.
I've (obviously
) tried to disconnect the battery for 30 minutes, cleared errors and checked ALL (!!) the fuses in the cabin. I have yet to check the fuses in the boot, but I'll do that tomorrow.
Any ideas would be much appreciated! Granted, a pre-used control module is only £85, but still, if anyone have any ideas..
Doing a DAS read gives quite a lot of issues:
- Specified-actual configuration of interior CAN bus: The specified configuration of control module VR does not correspond to the actual condition.
- REAR SAM - Rear signal acquisition and actuation module: 9097 Control module N52 (Soft top control module) is not sending any data.
- OCP - Overhead control panel: 90D2 CAN reception timeout: VR Vario roof. (Do not replace control module OCP. Continue troubleshooting in control unit VR).
- UCP - Upper control panel: 9038 There is a discontinuity in the line to component S84 (Vario roof/ATA switch group) or the component is defective.
- IC - Instrument cluster: 911C Fault in CAN communication with control unit Vario roof.
- PTS - Parktronic system: 9053 No or incorrect CAN message from control unit N52 (Soft top control module).
- PTS - Parktronic system: 9052 Fault in CAN communication with control unit N52 (Soft top control module).
- C-AAC - Convenience automatic air conditioning / AAC - Automatic air conditioning / HEAT - Automatic heater: 96A5 Fault in CAN communication with control unit Vario roof.
One of the first things I did was to take the boot appart (trunk partition, carpets etc - including that rear plastic panel where the switch for the roof/trunk partition) so that I could get to the chock absorbers top mount when I replaced them with YSRs.
I've been racking my brain about what I could have done (or not done!) to affect this, but in truth "all" I've done (other than retrofiting YSRs) is replace bushings in suspension arms and rear subframe, spark plugs, ignition coils and leads as well as replaced all oils in the car (except power steering, haven't gotten to that yet, and the roof hydralics).
Now, looking at that list above, the error is almost in all modules, so I started thinking about ANOTHER problem I'm having. The ABS/ESP isn't working.
The reason for that shows itself in DAS as:
- ME-SFI 2.8 - Motor electronics 2.8: P20CC-008 'Rough road detection' signal (by comparing wheel speeds) : Speed signal from control module ESP implausible / Read out fault memory of control unit ESP. (P1999)
- ESM - Electronic selector module: P1860 The right rear wheel rpm signal sent from the traction system via the CAN bus is implausible.
- ESP - Electronic stability program: C1130 L6/4 (right rear speed sensor) : Line monitoring
- ESP - Electronic stability program: C1707 Cruise control : Consequential fault . Process first of all all the other stored fault codes.
- HRA - Headlamp range adjustment: 9062 The signal line from component A51 (Headlamp range adjustment rear axle sensor) has Short circuit to positive.
Both those left ones ("bottom-left" two in the picture) goes to the right wheel and that left-most one is the one I couldn't put back in. It just refused after only a milimeter or two. Not sure why, could be the pins not going in the holes, but it all LOOKS fine! I'm going to try again as soon as the weather gets warmer, it's almost 100 miles to the garage where I used to work and have it stored over the winter so don't want to go there unless I have to..
However, because "things" leads to other "things" (as we can see from the cascade of errors all over the place!), COULD this be the cause of the VR issues as well? Although that wouldn't explain why DAS can't find the module.. Unless this connector I can't get back in causes .. "compound errors" on the CAN bus??
I'm struggling to understand (or accept!) why the VR module "just broke" like that.. But because there's been so much work going on over six months or so, I don't even know where to begin to unravel this.
I've (obviously
) tried to disconnect the battery for 30 minutes, cleared errors and checked ALL (!!) the fuses in the cabin. I have yet to check the fuses in the boot, but I'll do that tomorrow.Any ideas would be much appreciated! Granted, a pre-used control module is only £85, but still, if anyone have any ideas..
