MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: MarkyN on September 10, 2015, 08:38:35 pm

Title: braking automatically while driving
Post by: MarkyN on September 10, 2015, 08:38:35 pm
Driving the car out of work today and the brake lights were flashing off and on as if I was pushing the brake pedal.
The car started to slow down each time this happened and then would pick up again, all this time my foot was on the gas pedal, never touching the brake one.

At one point I had to stop due to loss of power and start again.

I got it home just about but no dash lights popping up or anything.

Any ideas???
Title: Re: braking automatically while driving
Post by: MarkyN on September 10, 2015, 09:03:57 pm
Brake lights are constantly on now since starting the car. Even when just ignition is on. Is there a way of bypassing the brake pedal switch?
Title: Re: braking automatically while driving
Post by: th3_f15t on September 10, 2015, 09:36:14 pm
You'll need to get a diagnostic done of all control modules and systems to pin point what's gone wrong here.
Title: Re: braking automatically while driving
Post by: MarkyN on September 10, 2015, 09:37:13 pm
Quote from: th3_f15t on September 10, 2015, 09:36:14 pm
You'll need to get a diagnostic done of all control modules and systems to pin point what's gone wrong here.

It's not throwing any dashboard lights, would vagcom etc still pick up the problem?
Title: Re: braking automatically while driving
Post by: Kam88 on September 10, 2015, 09:38:59 pm
vagcome should pick it up dash light wouldn't necessarily show up a fault but control modules would
Title: Re: braking automatically while driving
Post by: MarkyN on September 10, 2015, 10:11:19 pm
Quote from: Kam88 on September 10, 2015, 09:38:59 pm
vagcome should pick it up dash light wouldn't necessarily show up a fault but control modules would

Ok cheers mate, I'll get it plugged it tomorrow if I can. I am lead to believe that it could be the brake switch
Title: Re: braking automatically while driving
Post by: xjay1337 on September 11, 2015, 09:20:09 am
Certainly sounds like the brake light switch..  :popcornsoda:
Title: Re: braking automatically while driving
Post by: MarkyN on September 11, 2015, 09:25:13 am
Quote from: xjay1337 on September 11, 2015, 09:20:09 am
Certainly sounds like the brake light switch..  :popcornsoda:

I have just rang the VW specialist I use a lot and they have said the same. They said there is an upgraded one that might fit?

Does anyone know anything about this one?

My car is the 05 DSG but been told they later versions have modified switches?
Title: Re: braking automatically while driving
Post by: th3_f15t on September 11, 2015, 11:15:18 am
There were a lot of revisions to equipment in the mk5 Golfs from the early ones to the laters ones so it wouldn't surprise me that this is correct. :happy2:
Title: Re: braking automatically while driving
Post by: MarkyN on September 11, 2015, 12:11:13 pm
Quote from: th3_f15t on September 11, 2015, 11:15:18 am
There were a lot of revisions to equipment in the mk5 Golfs from the early ones to the laters ones so it wouldn't surprise me that this is correct. :happy2:

I have been in touch with VW today. They said that this switch was upgraded but weather it would fit mine or not he was unsure. Am going to take my part in with me today after work and ask to see the upgraded one and see if it's a similar connection
Title: Re: braking automatically while driving
Post by: MarkyN on September 11, 2015, 04:05:50 pm
*** PROBLEM SOLVED ***

Cheers for all the help guys, it turned out to be my brake pedal / light switch. Bought an upgraded one from TPS today, £12, jobs a good one! Glad to see the golf back on the road

Once again, cheers lads
Title: Re: braking automatically while driving
Post by: th3_f15t on September 11, 2015, 04:10:17 pm
And thank you for the info, always good to add knowledge to the bank. Go enjoy her now mate!
Title: Re: braking automatically while driving
Post by: MarkyN on September 11, 2015, 04:16:26 pm
Quote from: th3_f15t on September 11, 2015, 04:10:17 pm
And thank you for the info, always good to add knowledge to the bank. Go enjoy her now mate!

yes mate, always hand to spread abit of knowledge.