ESP Fault Message, Horn Permently On

[Oneilly]

Hi Guys,

Had a nightmare today, cut along story short I was at work in London and got a call from the wife saying the car horn was blowing and she couldn't turn it off.

When I arrived home 2 hours later with the neighbours going crazy i put the key in the ignition and found the car showing ESP fault and steptronic fault.

I turned the engine over and then try to shut the car down but even with the key removed the engine kept running!

Bear in mind the car hadn't be driven a lot lately.

My most pressing question is what and where is the horn fuse situated, I have no fuse diagram to check and really need to make sure the horn don't just start going off while I'm away.

Once I get some time I'll drop it into the garage to get it checked over.


E280 2006

 

[martyz]

Could well be battery voltage low.

 

[Oneilly]

Yeah I wondered that, the batts are both only 1 year old, could water Ingress do it, my fog lamp is cracked.

 

[martyz]

Anything that causes a short circuit will drain the battery.

 

[Oneilly]

Just an update, the dashboard lights go crazy key won't turn in the ignition, clicking noice from boot fuse board, fault ESP and various others.

It's like a mayor problem with the electrics , as mentioned I have a smashed fog light, could water ingress to causing this???

 

[martyz]

Isolate by disconnecting it,if battery supply voltage is low strange things happen.

 

[Oneilly]

Disconnected the neutral for a few hours, all seems back to normal now, except horn don't work, any idea where the fuse is on 2006 EClass ?