Thread: 2008 D3 - EPB issue, wheel wobble and coolant censor - some theories!

My thoughts as follows:

1. The potential for it to be driveshaft balance related, possibly a bearing, is worth investigating further.

2. Classic symptoms of an EBP that is getting close to its adjustment limits. You should stop using it until it has been cleaned, re-adjusted & calibrated and possibly new brake shoes installed. If left it will eventually get outside the limits of adjustment and be effectively stuck on, which becomes much more of a mission to correct and in some cases requires an expensive EPB module replacement.

3. Likely to be the float switch in the coolant tank has degraded and sunk. New coolant tank will fix this and is a good idea anyway because the plastic tank is known to split at the seam with age.

Regards,
Scott

Thanks Scott!

Sounds like good thorough knowledge

In regards to (2.) When you say - don't use it. Does that mean "don't use the Handbrake"? How do I do this when it activates by itself when putting the car into Park?

Out of interest do you know the costs around adjusting the EPB? I think I am trying to settle some Sunday budget nerves

With 3. - the sensor error only comes up intermittently? If it had sunk I has assumed it would error all the time?

thanks again

Glyn

My EPB doesn't activate automatically like that so I don't know if you can change that behaviour. If not, I would be getting it seen to asap. Can't help with cost sorry. The intermittent nature of the coolant error is a very common symptom. Perhaps the float copes ok for awhile & then gets worse.

Scott

Does the EPB automatically engage when you put the transmission into "Park" or when you take the key out of the vehicle ???

In the Gap IID tool programming options for your model Disco, I see that you can disable both the "Drive away release" and the "Key out apply" EPB functions, but I couldn't see any reference to the EPB being applied when you put the trans into Park. My D4 certainly doesn't do this, and if it did, I'd be looking for a way to disable that function. I see it as an unnecessary pain in the butt.

In any case - letting the EPB "automatically disengage", or driving off while the brake is still applied is NOT a good practice and is something that I would strongly recommend you not do.

Hmmm BMKal, I will check when the brake comes on - I was sure it occurred when I went into Park - I will check. I don't want to play with it too much though until I get it to the mechanics.

The mechanic we prefer to take it to is probably 30km's away. Would travelling this kind of K's be ok?

And yes, I do drive off and let the brake disengage automatically - gulp - I assumed this was ok - and part of the design. But it sounds like It does damage, is that correct?

Assuming this may be what has caused this issue? Could it cause other damage?

Thanks for your help

Glyn

Drive away release is part of the design and you've done nothing wrong. But seen as not best practice by some, including me, because it wears the brake faster, leading to issues like you're experiencing sooner. Either way, it's a good idea to get it adjusted/cleaned reasonably frequently as a preventative measure. I get it done yearly and will be looking at diy next time.

Scott

Originally Posted by BMKal

...driving off while the brake is still applied is NOT a good practice and is something that I would strongly recommend you not do.

I agree strongly with BMKal, having had similar issues on my MY08 D3 over the years. I think this practice is the major if only wear action on the EPB shoes as hopefully at all other times there is not movement between the shoes and drums. The worst I had was on the boat ramp, boat just loaded and Disco screeched complaints and refused to move!

When I first stopped using the EPB, I had to put tape over the switch as it had become an automatic reflex to use it every time I parked. I rarely use it now, mainly if parked on a hill with a trailer, and then I always release with foot on the brake.

If it is screeching, get it cleaned out and adjusted quick smart and don't use it in the meantime.

Andrew

Thanks All for your help.

Makes sense. I will get it seen to - hoping early this week, then get the Vibrations sorted and others odds and ends

Cheers