[Elmiirraa]

I received a letter stating there was a safety recall for the Engine PCV Blow-by-Heater Recall Campaign No. 2022-095 (11 80 22RC). I brought my BMW in then picked up my vehicle around 4pm and drove about 30 km then suddenly the vehicle began to rough idle and went into limp/lean mode with a large check engine icon (half empty half full). I called the dealership and advised them what was happening and they asked me to drive it back as they aren't sure what happened. The car wouldn't even move more than 40km/hr. They performed a scan of the vehicle and advised that no new codes are popping up except for the limp/lean mode code. They stated they would have to look into it further tomorrow and shuttled me home.

(Not sure if this is relevant but car went into limp mode after running AC)

I received a call the next stating they are unable to clear the code to get the car out of limp mode and they cannot understand why it would go into Limp mode as they only completed the wiring harness repair kit with the additional fuse. They told me I can drive my vehicle until they hear from BMW Canada. I left and 30 km later driving in limp mode. I stop somewhere and went to turn my car on again, but it wouldn’t even start and I had to get it towed.

Also as per RCRIT they are supposed to see if the pCV blow by heater has failed. They only visually inspected it hasn’t melted. How does that prove it hasn’t failed?

Whats weird is first they told me they didn’t touch anything in the engine bay and that all the work was done only under the passenger footwell. But then when I got to BMW to check out what’s going on with my vehicle, the technician showed me that they put a wiring harness where the DME/e-box is located in the engine bay. In addition to them telling me that the only new code was the limp mode code, there are three additional codes relating to the DME box that they didn’t mention. In my opinion, it’s not a coincidence that they went into the DME box or wires connected to the DME box for the splice now suddenly I’m getting DME codes that have caused my car to go into limp mode and now consequentially not even turn on.

Codes:
2A77 DME: control unit internal fault: valvetronic output stage
2A38 DME: Valvetronic servomotor:sluggish movement or open circuit
55C3 VTG AWD limp-home control activated. No DSC Specified nominal torque
6EC4 DSC steering-angle sensor, adjustment

Anyone have a similar issue with this recall? Any ideas on what they could have done wrong or how that splice could have caused the additional codes? I also can’t find any information on what work is done in the passenger foot well for this recall.

[gbalthrop]

Originally Posted by Elmiirraa

I received a letter stating there was a safety recall for the Engine PCV Blow-by-Heater Recall Campaign No. 2022-095 (11 80 22RC). I brought my BMW in then picked up my vehicle around 4pm and drove about 30 km then suddenly the vehicle began to rough idle and went into limp/lean mode...Codes:
2A77 DME: control unit internal fault: valvetronic output stage
2A38 DME: Valvetronic servomotor:sluggish movement or open circuit
55C3 VTG AWD limp-home control activated. No DSC Specified nominal torque
6EC4 DSC steering-angle sensor, adjustment...

Attached is the RCRIT for that recall. Procedure DETAILS begin on p.11 of pdf. Splice of SIX (6) Orange wires (Supply, 4 O2 Sensor Heater wires, & wire to Breather Heater) must be opened & SEPARATE In-Line fuse for Breather Heather is installed.

NOTHING should have been done to AFFECT the VVT Valvetronic "Throttle Control" system. HOWEVER, "Something WAS done to VVT System", presumably inadvertently. Either or both of the VTG & DSC/DXC codes are almost certainly "Secondary" to the VVT Codes, so address those VVT codes FIRST.

IF YOU want to test VVT Function yourself, or if you have doubts about Dealer (they SHOULD have ISTA wiring info & know how to use it), please let me know your Last-7 Characters of VIN & I'll send ISTA documents.
George

[Elmiirraa]

VIN: F085731

I basically had to get an electrician to come in and recode my DME in order for the car to turn on and get out of limp mode. Valvetronic was also adjusted.

I’ve read the RCRIT and don’t see anything about the footwell, what work was done there?

I didn’t have these codes or issues with my engine prior to the recall work so I’m just trying to figure out what could have caused the limp mode and engine not starting as a result of the recall work that was done. Thank you!