Rear brake disc and extended warranty

[vaclove]

Here is my issue:
Have a 3 years old F800GS with extended warranty.
1. The MOT found that the rear brake disc is worn out -> must be replaced.
2. The extended warranty does not cover the brake disc as it is wear and tear.
3. However if I have the disc replaced with non BMW one, it will invalidate the warranty, at least warranty on the braking system.


In order to keep the warranty and the bike legal, I need to pay ca 300 per warranty extension, 250 for rear disc replacement and 150 for annual BMW service.
Is it worth it? I am seriously considering to start servicing the bike in non authorized garage, but would really appreciate opinions of anyone having faced similar issue. I am not concerned about general repairs, but certainly don't want to pay thousands of pounds say for new engine.

 

[Dave Ett]

If you're worried about the engine, then fit a non standard disk and accept the possible loss of warrantee - I doubt the brake will fail, but if the ABS system did (for example) BMW would have to prove that the non-standard disk caused the failure.

 

[vaclove]

Thanks

Thanks for the answer. From what the insurance personel told me, using the disc from other maker would only invalidate the warranty on braking system, but not other parts.
Other reason why I want the disc from other maker is that I am not entirely happy with the lifetime of the original.
I understand that servicing the bike costs money, but I just felt that spending £700 just to keep the warranty is bit excessive.

 

[v8legend]

Other reason why I want the disc from other maker is that I am not entirely happy with the lifetime of the original.

You didn't actually mention the mileage?

 

[bobbsy]

I bought my 800GS in Sep 10. Last October I had a 1 year service, and was told that the rear disk had passed BMW's service limits (although still would have been OK for an MOT) and would need to be replaced, I can't remember the cost quoted but it was similar to yours. I queried this quite forcefully as the bike had done only 7000 miles and could not believe a disk could wear so quickly. After a bit more investigation they said the rear master cyclinder was causing the brakes to stick and had thus worn the disk. Had all replaced under warranty.

 

[vaclove]

Milage

Sorry for not mentioning the mileage. I am approaching 19000 miles. Some posts say the the lifetime of rear disc should be around 18000 miles.
I did most of my rides with mate who has Kawasaki ZRX and despite his bike has ca 25000 miles, the discs are still fine.

I gave a call to the BMW warranty service and they told me, that disc installed has to have BMW approved specs. In such a case, warranty should be ok.
I have checked the warranty brochure and there it says all the replaced components have to be genuine BMW.

Finally, I have decided to extend the warranty, but to go with other maker of the disc. In case I would have a warranty claim, they would need to prove the non BMW disc caused whatever failure I would be claiming.

 

[Dave Ett]

Good decision I suspect. I extended my warantee and then never needed it, so I hope its the same for you!

 

[Silversurfer]

Quote from page 1 of BMW New Bike Warranty Booklet provided with my new F800 GS -

"We believe that Authorised BMW Dealers are best equipped to meet your service and maintenance requirements. However, your dealer warranty will not be affected should you decide to have servicing carried out by a non-BMW authorised workshop".

It does earlier state that proof of servicing in accordance with recommended schedules and timescales will be required in the event of a warranty claim so as long as you have the service log book stamped by whoever does your service then there should be no problems with any warranty claims.

Motor Manufacturers who insisted that a vehicle could only be serviced by an authorised/official dealer were found to be guilty of restrictive practice and were forced by law to stop.

With regards to parts I believe consumer law requires that as long as "parts of a similar quality have been used" then again, your warranty should not be invalidated unless any failure was directly attributable to the replacement part. In plain terms fitting a replacement rear brake disc can in no way be used to refuse a claim on an engine fault.

I have used an independent dealer in the past for convenience but have recently had the rocker box gasket replaced under warranty without any quibbles at all.

 

[cookie]

Quote from page 1 of BMW New Bike Warranty Booklet provided with my new F800 GS -

"We believe that Authorised BMW Dealers are best equipped to meet your service and maintenance requirements. However, your dealer warranty will not be affected should you decide to have servicing carried out by a non-BMW authorised workshop".

It does earlier state that proof of servicing in accordance with recommended schedules and timescales will be required in the event of a warranty claim so as long as you have the service log book stamped by whoever does your service then there should be no problems with any warranty claims.

Motor Manufacturers who insisted that a vehicle could only be serviced by an authorised/official dealer were found to be guilty of restrictive practice and were forced by law to stop.

With regards to parts I believe consumer law requires that as long as "parts of a similar quality have been used" then again, your warranty should not be invalidated unless any failure was directly attributable to the replacement part. In plain terms fitting a replacement rear brake disc can in no way be used to refuse a claim on an engine fault.

I have used an independent dealer in the past for convenience but have recently had the rocker box gasket replaced under warranty without any quibbles at all.

er, OP's bike is 3 years old on extended warranty

 

[Rogdodgemcbodge]

I had some worked carried out under warranty and during the health check they said my rear disc had worn and the brakes were down to 10%. As I've done under 9,500 miles, this surprised me a lot, especially as they said I would have to pay £300 for them to be replaced. When the 6000 mile service was carried out the rear pads were 30% worn then, so that's a lot of wear for 3000 miles. I don't do any hard riding these days, it's a long time since I was a teenager, so it's just normal road riding.

I feel a conversation coming on with the dealers, I didn't say much at the time out of shock.

 

[slparry]

if you get a Brembo disk they're the oem supplier anyway

 

[timbox]

Apart from me old R1100S which had the common bobbin wear issue, Ive never replaced a disk on any bike through wear. My last bike, a K1300GT did 60K miles on the OE discs and were still in spec, just. I would suspect the caliper slide pins had seized on your rear brake causing the premature wear, its a common issue on these type calipers. One other thing could be somebody changed the rear pads to an HH compound, also known to wear discs faster, but I still wouldnt expect that sort of wear

 

[Rogdodgemcbodge]

So they've just told me that it's normal wear, even though on my 1150 GS the rear brakes lasted 25k miles and there appears to be no obvious issues with the breaking system. Got to admit I'm now thinking of selling it and going for a jap bike as I've never known brakes to wear that much in such a short time. And as for the disc......

 

[agent2494]

My rear disc is lasting 6000 miles. Despite having new pin fitted due to corrosion and it's now getting beyond a joke every service disc and pads!!! The bike is now costing to much to run as I have 3 services a year due to the miles I do


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[Paul Wakefield]

My rear disc has got low at 24k miles but that was caused by the rear calipers sticking which I hadn't spotted. My experience is that BM pads and discs last a reasonably long time unless they stick.

The insured warranty no longer requires you to use a BM dealer for servicing nor BM parts (merely "equivalent specification"). Not quite sure when it changed but it was a few years ago.

Mine is a 1200GSA but I would think the 800s are the same.

 

[Rogdodgemcbodge]

I strongly recommend that you send a tweet to @BMWMotorrad as they will reply. It's also worth talking to an engineer before you do as the ones I know did some great work with the evidence I have. The first 30% of red brake wear for me worked out at 400km for every 1% when I had completed 12,000km. For the next 3,300km it worked out at 66km for 1% of brake pad plus a worn out disc when it was 80% worn per the health check (they told me 90% worn to my face). Sorry I'm using kilometres but its the numbers on the health checks. To put it in perspective I brought the bike new in June last year and have only today done 10,000 miles.