Hey everyone - long time lurker, first post. I have used this forum many many times with both my e46s and it has always been a great source of info - so thanks!
Anyway, my '03 318i Auto (Australian) is having some weird problems.
Symptoms:
- Occasional stalling - I haven't been driving any of the times this has happened, but it most recently happened at slow speed in a carpark. I am told the dash lights up with all sorts of random lights, including EML, Transmission error cog, ABS, Traction control etc.
- Occasionally, it won't start. Cranks nicely but won't catch. Leaving it for a while seems to fix the problem (i.e. it will start first go after about an hour or two)
The history:
After the first bout of non-starting, I came and plugged in my code scanner a few hours after the event. It started first go, but had the transmission cog light, handbrake light, and ABS light lit. I switched it off and then on again - everything perfect.
I read the codes and some codes of note were:
- Failure oil status sensor
- Camshaft sensor inlet
- Camshaft sensor outlet
- Crankshaft sensor
- CAN engine speed
- Power on reset
- Can DME DDE signal error
- No CAN message
- Tank sensor 2
I have a few ideas to discuss, mainly:
1. The battery appears to be the original - I will replace tomorrow and report back. I would love it to be the battery, but the voltage reads ok when charging (14.4) and at rest (12.2), and the car cranks for ages without tiring. Batteries last forever in Australia because it doesn't get cold, but it's getting replaced anyway. I'm not sure it would explain the stalling issue though?
2. Crankshaft and cam sensors - When cranking, it really feels like the engine is confused. It will randomly fire on one cylinder (that's what it seems like) but it won't catch. Almost like the timing is way way way out. I remember the cam sensor codes being there last time I scanned it (about 2 months ago). I'll try these second if the battery fix doesn't eventuate. Also give me a chance to swap out the dying starter motor which is making funny noises.
3. Loose wiring/shorting/broken connection - would explain the intermittent nature of the problems - perhaps something at the DME interface? could also explain all the CAN errors.
4. Mass Air Flow meter?? Are they known to cause this many problems?
5. Speed sensors/ABS module - not really too confidant that this is the problem, but they are common - anyone know how to check?
We can eliminate;
- Fuel level - the tank is full. Could be a fuel delivery issue though (wouldn't really explain all the errors and lights though.
- Ignition switch seems ok
Any help greatly appreciated!! Thanks in advance. Ed
Anyway, my '03 318i Auto (Australian) is having some weird problems.
Symptoms:
- Occasional stalling - I haven't been driving any of the times this has happened, but it most recently happened at slow speed in a carpark. I am told the dash lights up with all sorts of random lights, including EML, Transmission error cog, ABS, Traction control etc.
- Occasionally, it won't start. Cranks nicely but won't catch. Leaving it for a while seems to fix the problem (i.e. it will start first go after about an hour or two)
The history:
After the first bout of non-starting, I came and plugged in my code scanner a few hours after the event. It started first go, but had the transmission cog light, handbrake light, and ABS light lit. I switched it off and then on again - everything perfect.
I read the codes and some codes of note were:
- Failure oil status sensor
- Camshaft sensor inlet
- Camshaft sensor outlet
- Crankshaft sensor
- CAN engine speed
- Power on reset
- Can DME DDE signal error
- No CAN message
- Tank sensor 2
I have a few ideas to discuss, mainly:
1. The battery appears to be the original - I will replace tomorrow and report back. I would love it to be the battery, but the voltage reads ok when charging (14.4) and at rest (12.2), and the car cranks for ages without tiring. Batteries last forever in Australia because it doesn't get cold, but it's getting replaced anyway. I'm not sure it would explain the stalling issue though?
2. Crankshaft and cam sensors - When cranking, it really feels like the engine is confused. It will randomly fire on one cylinder (that's what it seems like) but it won't catch. Almost like the timing is way way way out. I remember the cam sensor codes being there last time I scanned it (about 2 months ago). I'll try these second if the battery fix doesn't eventuate. Also give me a chance to swap out the dying starter motor which is making funny noises.
3. Loose wiring/shorting/broken connection - would explain the intermittent nature of the problems - perhaps something at the DME interface? could also explain all the CAN errors.
4. Mass Air Flow meter?? Are they known to cause this many problems?
5. Speed sensors/ABS module - not really too confidant that this is the problem, but they are common - anyone know how to check?
We can eliminate;
- Fuel level - the tank is full. Could be a fuel delivery issue though (wouldn't really explain all the errors and lights though.
- Ignition switch seems ok
Any help greatly appreciated!! Thanks in advance. Ed
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