Abs bas and esp

[Burtie1967]

Help or advice needed I went out this afternoon put the key in the ignition and started the car the ABS light and the BAS ESP light remained on with a message 3 faults visit workshop with that I turned off the ignition and removed the key then tried again this time they went off on start up and the faults have gone I've tried it an hour later and everything is still fine any ideas anyone will be appreciated its on the mercedes e220 cdi classic

 

[toby1]

If you search the forum you will see that replacing the brake light switch might fix this common issue

 

[Burtie1967]

If you search the forum you will see that replacing the brake light switch might fix this common issue

It only happened the once it's fine now the problems gone away I was just curious as to why it happened in the first place

 

[Naraic]

It only happened the once it's fine now the problems gone away I was just curious as to why it happened in the first place

It could be sign of a failing brake light switch. You could get the codes read rather than face being stranded in the future.

 

[Burtie1967]

It could be sign of a failing brake light switch. You could get the codes read rather than face being stranded in the future.

Depends on the cost of getting codes read our local merx garage knows nothing about mercedes I think I'll take my chances as I have a couple of spare in the car

 

[brandwooddixon]

It could be a failing brake light switch, however, when I had a similar problem on my old E430, it turned out to be a failing battery - it was after all the original factory one.

The drop in temperature overnight was enough to cause the battery to be slightly under voltage on start-up. This triggered warnings that went away when the car was restarted after it had run for a couple of minutes.

 

[Triv]

+1 for the battery.
It's starting to get cold overnight now and weak batteries are showing up.

 

[MIW615]

For what it costs replace the brake light switch - this has been discussed many times before - do a search and you will read all you need to know

 

[television]

Yes got to be worth the £12 for a brake switch, its cheaper than anything else

 

[Frontstep]

I might join the battery idea my car did the same, had the battery tested after a charge and its been fine.

 

[Burtie1967]

As said ive got about three spare brake light switches in the glove box but thinking about the battery when I first start the car in the mornings I turn the key and it turns over slowish I let go of the key a second then turn it over again it then turns over faster and starts but when I think back further last winter I did have to put the battery charger in it a few times