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Discussion Starter · #1 ·
Hello,

My Tiguan has just hit 85,000 miles, and is away to have its second change of brake discs and pads, all round. When I purchased the car in September 2019, they were all changed before I purchased it as it failed the first MOT on these grounds:
  • Nearside Rear Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii))
  • Offside Rear Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii))
  • Nearside Front Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii))
  • Offside Front Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii))
When I had my car serviced back in February at around 80,000, my indy German car specialist garage advised that my rear pads were worn to around 85%, and the front pads were at 75%. They also said that the discs would need to be changed too, as the current ones would just shred the new pads. Over the last week or so, a horrific grinding sound has appeared so I have booked it in for Thursday this week. I've been told that only the front pads have sensors, so I'm guessing the grinding is coming from one of the rear sides. It sounds like metal on metal, and strangely continues after I release the break pedal and it stops once the car gets up to about 20mph.

Has anybody ever had experience of brakes wearing unevenly from offside/nearside? I know that they wear unevenly front/back especially when ACC is used, which I have to be honest, I use A LOT.

This post is a heads up for the rest of you Tiguan owners! Potentially a large bill to pay every ~40,000 miles. I'll never know the cost of the first replacement of discs and pads, but I'll keep you updated about how much it costs this time.
 

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My 2010 Passat is on over 99,000 miles and I have never as yet replaced any discs but I did put in some new front pads at around 84,000 miles - rears will probably need replacing soon though. Just the front nearside has a wear sensor. Never owned a Tiguan so cannot offer any advice but uneven wear could mean the calipers are sticking. You may be able to see the thickness of the outer pads through the wheel (I use a torch) but best to take the wheel off to check the inner pads. If the rears are grinding the discs then they're knackered and need replacing.
 

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Discussion Starter · #3 ·
As expected, both my front and rear discs and pads were replaced. £734.38 all in from my trusty indy German car specialist garage :)

All callipers in good working order, so that's a relief. The grinding sound must have been coming from the rear pads, as they described them being at 100% worn so it must've been metal on metal.

For future... at what % worn does the front brake pad warning come on at, approximately?
 

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As expected, both my front and rear discs and pads were replaced. £734.38 all in from my trusty indy German car specialist garage :)

All callipers in good working order, so that's a relief. The grinding sound must have been coming from the rear pads, as they described them being at 100% worn so it must've been metal on metal.

For future... at what % worn does the front brake pad warning come on at, approximately?
Once the embedded wire wear sensor breaks (it will be on the inner pad as that is always in slight contact with the disc) the warning light will come on and should still be good for around 1000 miles - that is assuming of course all the other pads haven't already warn down to the limit! Always best to err on the side of caution and get them replaced or at least checked as soon as possible.
 
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