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D3 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc.

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Old 17th June 2012, 02:58 PM
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A8_Tony A8_Tony is offline
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Default Towing mode
Well guys, following on from the battery issue I had, it now seems the car thinks I've got a permanently attached trailer/caravan!

This means the car is currently sat in towing mode, without the ability to turn it off in the mmi

Anyone else experienced this?
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Old 17th June 2012, 03:21 PM
PsYcHe PsYcHe is offline
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Does your car have towbar fitted? Could be a short there.
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Old 17th June 2012, 03:22 PM
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Does it have the socket for a towbar electrics fitted?

If so it could be water that is causing a short



Edit
You just beat me there Richard....
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Old 17th June 2012, 06:04 PM
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It does have a detachable towbar. I pulled the socket down today, we've had a lot of water with the rain here, but couldn't spot any signs of ingression. I guess I'll have to get a hair dryer on it or something.

Does anyone know what fuse controls the electrics going to the socket? If I can pull that, I can then quickly identify if that's the issue
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Old 17th June 2012, 07:14 PM
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Spray plenty WD40 into it and it should help
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Old 20th June 2012, 10:45 PM
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A big thanks to PsYcHe who yesterday coded out the towing control ECU for me, and adjusted the parking sensor, and self levelling system to think it hasn't got a towing control unit.

The car is now back on track, but I obviously have an issue with the towing control ECU on the car, but have no idea where it is!!!!

Anyone got a clue?

Thanks
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Old 21st June 2012, 04:49 AM
Godders Godders is offline
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Originally Posted by A8_Tony View Post
The car is now back on track, but I obviously have an issue with the towing control ECU on the car, but have no idea where it is!!!!

Anyone got a clue?

Thanks
You'll find it lurking underneath the battery - remove the battery and you'll see a couple of Torx screws holding a black box to the panel underneath. It will be printed with Westfalia logos.
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Old 21st June 2012, 02:43 PM
paulrstaylor paulrstaylor is offline
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Here is the retrofit instructions from Westfalia, who are the OEM for the towing system..... hope it helps

http://www.westfalia-automotive.de/f...7391101-02.pdf
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Old 21st June 2012, 03:15 PM
PsYcHe PsYcHe is offline
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Under the battery... Hmm... Wonder if it's just a loose connection under there.
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Old 21st June 2012, 03:58 PM
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Under the battery... Hmm... Wonder if it's just a loose connection under there.
or water, that's where I was getting water ingress from one of the drains - a fat blue pipe just in front of the battery compartment going to the wheel arch...
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