Help with errors

[SirHiss]

First time using INPA. I have 2 problems that I'm trying to diagnose. Airbag light stuck on and right headlight does not move up or down on startup. (Can't pass MOT with these so can't currently drive the car. )

First I scanned the airbag fault and found this:





I had no idea what a BST was so did some googling. Now I know! I had connected a CTEK charger adapter to the BST not realising what it was, so I moved it to the actual battery terminal instead, hoping this was the issue. I then tried clearing the code/light but it comes straight back! I don't know what to do now.

Ok, onto the headlight issue... I tried to access the vertical headlight aim control in INPA and got this:





Searched this but have not come up with much. Is the vertical headlight control done from within the LCM IV? I believe it is a separate module on older cars. Is that why It cannot be accessed here? And if that's the case, is my LCM buggered again?! It reports no errors itself.

Could 193 errors with the ALC be the problem?



Would this be part 63126939069? Where is it located? I'm reading about this being for adaptive headlights that move horizontally but my car does not have that.

Not sure where to go from here. Any help would be appreciated.

I have attached a txt file of the full INPA scan of my car. Perhaps someone could tell me what else I should be concerned about!

[wpoll]

Wow - quite the list!

Beyond the issues you mention (bad BST and ALC issues) you have a couple of other matters that need attending to: -

1. Glow plugs (and controller) - all six are reporting faults. This could be because all six are faulty but it's more likely that the controller is faulty. Replace them all/both.

https://xoutpost.com/bmw-sav-forums/...-2004-mod.html

2. Is your EGR removed/disconnected? You have a fault code for that too.

3. Your Auxiliary heater (Webasto) is reporting a fault. Maybe it is also disconnected? These are worth keeping in good running order - they help the engine heat up faster on cold mornings (like on mine here this morning!).

[SirHiss]

Originally Posted by wpoll

Wow - quite the list!

Beyond the issues you mention (bad BST and ALC issues) you have a couple of other matters that need attending to: -

1. Glow plugs (and controller) - all six are reporting faults. This could be because all six are faulty but it's more likely that the controller is faulty. Replace them all/both.

https://xoutpost.com/bmw-sav-forums/...-2004-mod.html

2. Is your EGR removed/disconnected? You have a fault code for that too.

3. Your Auxiliary heater (Webasto) is reporting a fault. Maybe it is also disconnected? These are worth keeping in good running order - they help the engine heat up faster on cold mornings (like on mine here this morning!).

Thanks for the reply, wpoll.

1. I will get the glow plugs and controller ordered.

2. I removed the EGR. Is there a way to tell the ecu that it's removed?

3. My Webasto has never worked and I've never touched it. I don't have a clue how to diagnose/fix it! Which module code is this in the list? (Is there a list of what they all mean somewhere?)

These issues and the fact that my thermostat was stuck open for a year goes some way to explain my awful mpg in the cold!

Any idea about the other stuff?

[SirHiss]

One problem fixed!

While fitting a CTEK charger quick disconnect to the battery a while ago (so I didn't have to remove the spare wheel and suspension pump every time) I had to cut away a little bit of the red plastic covering the positive terminal. In doing so I accidentally cut through one of the BST signal wires! I'm clumsy!

Soldered, heat-shrinked, code cleared.

Now, the driver side headlight not initialising and aiming at the floor I'm stumped on. It can't be the level sensor as that would make them both aim down right? Can the vertical aim motor be removed without taking the headlight apart?

[wpoll]

Originally Posted by SirHiss

Thanks for the reply, wpoll.

1. I will get the glow plugs and controller ordered.

2. I removed the EGR. Is there a way to tell the ecu that it's removed?

3. My Webasto has never worked and I've never touched it. I don't have a clue how to diagnose/fix it! Which module code is this in the list? (Is there a list of what they all mean somewhere?)

These issues and the fact that my thermostat was stuck open for a year goes some way to explain my awful mpg in the cold!

Any idea about the other stuff?

Great that you have sorted the SBS error.

If you remove the EGR (or disconnect it), you will get the 4501 code for lack of EGR flow. I think this can be mapped out but this requires re-programming of the DDE. Not something you can sort yourself...

The Webasto also needs proper diagnosis (if you want to run again). INPA can give you some information. You can also check the connections etc.

In the error codes, the module "ZUHEIZ" is the Webasto (ADDITIONAL HEAT). The error related to "Verbrennungsluftgeblaese" is the "combustion air blower" inside the Webasto heater, so something inside it isn't happy.

The headlight issue is your most pressing issue, in regards to getting your MOT. It could be as simple as a broken or disconnect control arm on the healight - or it couldbe a failed motor or controller. Inspecting the headlight from behind (you can open the back after removing some small torx screws) is a good place to start.

The other codes in your list can be researched and translated via Google. For instance, "Drucksensor 1 defekt" is "Pressure sensor 1 defective", "sitz" is "seat" etc.

Ignore the EBV fault - many of us have this error - the jury is out as to whether or not it is a real fault or if it can be resolved (if it is a real fault). Ignore it for now and move on. :-)