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My Ampera has just come back from its 5th year service and MOT, and as always, it was a comedy of errors from Eden in Swindon. ?

The health check came back as rear brake discs rusted, although brake pad wear was only 30%.
I'm still under my 10year/Lifetime warranty, but I would be really shocked if it covered brake discs.

Eden Vauxhall have said that the Ampera has a "special" rear breaking system that I wouldn't find in any 3rd party garages, which I don't believe for a second. And have quoted me £530.62 for new discs, which I think is way too much. Considering that they can't even sort the service out without screwing something up, I don't really want them doing this work.

Has anyone on here changed their rear brake discs? and if so, with whom?
 

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Ampera aka IGOR
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Basically the same as most other current Vauxhalls. I paid through the nose at the first MOT due to this as I thought I would have to have genuine VX parts for the Lifetime warranty. At the last service, I was told that they were looking corroded so kind of just an advisory. I bought new discs for front and rear along with pads and did them all myself. Any competent garage can do them and I am sure that I read on here somewhere that the rear discs are the same as an Astra. I bought my discs and front pads from eBay, the rear pads I bought from another website which, although a '.co.uk' address, were based in Germany.
 

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Part number is 13504280 - which you will find is a common Astra part - many OEM sources, of course Vauxhall is going to be more expensive, but the OEM parts are around £25 max, plus pads ~ £15

Other cars that use these discs;

  • VAUXHALL Astra Mk6 (J) Hatchback (Year of Construction 12.2009 - ..., 87 - 194 PS, Diesel, Petrol)
  • VAUXHALL Astra Mk6 (J) Estate (Year of Construction 10.2010 - ..., 87 - 194 PS, Diesel, Petrol)
  • VAUXHALL Astra Mk6 (J) GTC (Year of Construction 10.2011 - ..., 101 - 200 PS, Diesel, Petrol)
  • VAUXHALL Astra Mk6 (J) Saloon (Year of Construction 06.2012 - ..., 95 - 180 PS, Diesel, Petrol)
  • VAUXHALL Astravan Mk5 (H) (Year of Construction 11.2011 - ..., 125 PS, Diesel)
  • VAUXHALL Cascada (Year of Construction 02.2013 - ..., 140 - 200 PS, Diesel, Petrol)
  • VAUXHALL Zafira Tourer Mk3 (C) (P12) (Year of Construction 10.2011 - ..., 110 - 194 PS, Diesel, Petrol, Petrol/Natural Gas (CNG), Petrol/Petroleum Gas (LPG))
 

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I'm not crazy, the attack has begun.
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I've posted at length on this particular issue.

The discs and pads are cheap as chips, standard GM delta platform, but you need to replace the use-once caliper mounting bolts to meet the design specification.

The original Ampera discs had a special nitride coating to reduce the surface corrosion, but it is unstoppable. Just strip and clean the brakes very year or two to keep everything working nicely, due to low level usage.
 

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As others had said the brakes are bog standard Astra parts. I did the front and rear pads and discs myself on both our Volts with parts from eBay (about £150 total for both cars, front and rear), plus the bolts from the local Vauxhall dealer (another £40ish). Frankly one of the easiest brake jobs ever. Ideally you need a caliper rewind tool for the rear calipers (£15 from eBay).

I could had gone for more expensive discs but I thought at these prices I might as well just change them every 3 years.

 

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Swindon is close enough to Wantage (Grove) where Bellinger are based. They are often reported as being the most reasonable and efficient of all Vauxhall approved Ampera Specialists. I suggest you give them a ring if you do not want to do the job yourself. If you 'google' them you may see an Ampera standing outside their showroom.
 

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You can source the bolts cheaply as well (£1.80 each) part number 11570581 - the reason you have to replace them is that they are torqued beyond the elastic limit when fitting.

Workshop manual info:
  • Install 2 new brake caliper bracket bolts (1).
7.1. Tighten the bolts a first pass to 90 N·m (67 lb ft).

7.2. Tighten the bolts a final pass an additional 60 degrees.
 

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Swindon is close enough to Wantage (Grove) where Bellinger are based. They are often reported as being the most reasonable and efficient of all Vauxhall approved Ampera Specialists. I suggest you give them a ring if you do not want to do the job yourself. If you 'google' them you may see an Ampera standing outside their showroom.
+1 for Bellingers if you want someone else to handle it.
 

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I was probably going to change them myself, but thought i would check if the lies about it being a specialty piece held any water before hand.
The OEM discs are about £80 each - the Americans call them rotors and you would be looking for GM part number: 23118061. There are plenty of aftermarket substitutes - these Bosch products look the part.
 

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I replaced my rear disks recently and was amazed how poor they were on the inside.....completely rusted over and wearing the pads like sandpaper.
After a search around I purchased mine from EBC who I have used before. I chose the disks with an anti-corrosion finish and hope it will extend their life.
The pistons wound in cleanly when installing the new pads so all good and ready for another 6 or 7 years.
 

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One of my rears was an advisory at this year's service (by Bellinger). He said there is absolutely no rush to replace it though.


EDIT Just checked the invoice and it was an MOT advisory, for the the rear offside pads. I'm sure he told me a disk was well pitted...the service invoice reports rear "pads/shoes" 80% worn, fronts are 20%
 

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One of my rears was an advisory at this year's service (by Bellinger). He said there is absolutely no rush to replace it though.


EDIT Just checked the invoice and it was an MOT advisory, for the the rear offside pads. I'm sure he told me a disk was well pitted...the service invoice reports rear "pads/shoes" 80% worn, fronts are 20%
Pads usually wear faster on the front. I just edited my post above as I wrote "rear side" of disks meaning the inner side that you can't see. The side you can see had about 50% wiped area left but the other side was just rough rust! Seriously dangerous.
121590
 

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My car has just passed it's MOT, a month earlier than needed (Peter Vardy not paying attention), and one of the advisories is 'Rear brake disc worn, but not excessively (1.1.14(a)(i))'. It's weird how it is just showing as worn and not corroded, these were new discs and pads last summer and done just over 12k. Fronts, replaced at the same time, 'Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) '.
 

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My car has just passed it's MOT, a month earlier than needed (Peter Vardy not paying attention), and one of the advisories is 'Rear brake disc worn, but not excessively (1.1.14(a)(i))'. It's weird how it is just showing as worn and not corroded, these were new discs and pads last summer and done just over 12k. Fronts, replaced at the same time, 'Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) '.
Seized caliper?
 

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I have given advice several times here that one should strip and clean rear brakes every two years at least. Leave that hour job a year or two and you will have to pay a price of both money and extra time. Your choice.
 

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I have given advice several times here that one should strip and clean rear brakes every two years at least. Leave that hour job a year or two and you will have to pay a price of both money and extra time. Your choice.
I wish I had the wherewithal to do stuff like this. It doesn't sound so tricky. But I have no mech knowledge (but enthusiasm with guidance), no decent facilities and probably not the right tools.
 
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