Two Carly error codes.

[tuco]

I've just checked my car with Carly whilst it was running and have 2 errors showing;

Fault code: 002743 CDKMD01 - misfire detection cylinder in 2.zuendreihenfolge / Lambda probe diagnosis heater
resistor Vcat bank 2 / Intelligent battery sensor LIN communication: timeout / CDKMD01 -
misfire detection cylinder 7 / DFES DTCM.DFC FMASnpl C - mixture adaptation, cumulative error
/ CDKMD01 - misfire detection Cyl.2 / CDKMD01 - misfire detection cylinder 5 / CDKMD01 -
misfire detection Cyl.2 in firing order / CDKMD01 - misfire detection Cyl.3 / Lambda probe
diagnosis heater resistance before kat bank 2 / Disturbed LIN BUS -communication the battery
sensor / Misfiring cylinder 5

Fault code: 00274E Misfire at a plurality of cylinders / Intelligent battery sensor compatibility: version not plausible
/ DFES DTCM.DFC FRAUmin C - mixture adaptation, lower speed range / CDKMD - misfire
detection, error sum / Lambda probe error nernstleitung Vcat bank 1 / CDKMD - misfire
detection sum error / Lambda probe error nernstleitung before kat bank 1 / Intelligent battery
sensor firmware implausible

Could someone give me a basic explanation of what's knackered ?

 

[ph001]

Maybe start with which engine you have!

 

[tuco]

Sorry about that, 2004 Z4 3.0.

 

[ph001]

For any kind of mixture related faults on the M54, the first thing to check is for splits in the intake elbow. It’s extremely common on the 3.0

 

[tuco]

Thanks, i'll check it tomorrow.

 

[tuco]

No tears or breaks in the intake.

 

[tuco]

Right, put the intake back together and ran carly again and got 2 different errors concerning a misfire on number 3 cylinder, let the car run until fully warm then went for a drive and ragged it silly in 2 & 3 gears to the red line for 15 mins. ran carly again and no issues, seems my car really doesn't like lockdown.

 

[ph001]

A misfire on a single cylinder is likely to be a coil pack (assuming plugs don’t have 50k+ miles on them)?

 

[tuco]

Coil packs and plugs were changed last year along with the rocker cover gasket.

 

[Jembo]

Coil packs and plugs were changed last year along with the rocker cover gasket.

My previous 3.0 always ran sweet from regular Italien tuneups

 

[tuco]

I'm going to give it the Italian once a week whilst lockdown continues.