Another rejection thread

[Daggerit]

So you say don’t want to pay cash of £18k on a depreciating asset ...but in reality, you don’t have the £18000 to spend on a GS

So BMW make it easy by offering you a PCP to rent it and cover BMW’s own depreciation cost and add 6.9% interest for the pleasure

So Nutty is right, you are help BMW shift metal, cover their costs of depreciation between A & B and paying an interest cost

Only one winner.......BMW

I could have done it with a little saving but since I’d likely want to change the bike in 2-3 years anyway I didn’t see the point.

Yes BMW will make money from my financing, but I definitely have lower interest than that thankfully! If I get a bike I want and can afford some monkey payments without getting nag totally shafted then I’m happy with that.


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[Nick dj]

Bakes problem

I would reject it, I left my GS1250 for six weeks and the front brake was seized solid. I broke its grip ridding it up the road but couldn't ride it to the dealer.
They now tell me "there is mud and muck inside the callipers and I have to pay to fix them as they are not covered by warranty.
I rode my previous GS with Brembo callipers when there was mountains of salt on the roads two years ago with no problem.
Cheap shit callipers my question to BMW is "how many car drivers wash their discs and callipers after use"

 

[Stevie900]

I would reject it, I left my GS1250 for six weeks and the front brake was seized solid. I broke its grip ridding it up the road but couldn't ride it to the dealer.
They now tell me "there is mud and muck inside the callipers and I have to pay to fix them as they are not covered by warranty.
I rode my previous GS with Brembo callipers when there was mountains of salt on the roads two years ago with no problem.
Cheap shit callipers my question to BMW is "how many car drivers wash their discs and callipers after use"

Seriously, what was the outcome? Have you still got it?

 

[Daggerit]

I would reject it, I left my GS1250 for six weeks and the front brake was seized solid. I broke its grip ridding it up the road but couldn't ride it to the dealer.
They now tell me "there is mud and muck inside the callipers and I have to pay to fix them as they are not covered by warranty.
I rode my previous GS with Brembo callipers when there was mountains of salt on the roads two years ago with no problem.
Cheap shit callipers my question to BMW is "how many car drivers wash their discs and callipers after use"

For this specific issue I'd be quite surprised if the actual caliper played much of a role in it to be honest? Presumably they were fine when you finished riding it six weeks prior to the issue, so just from a logical standpoint unless the calipers somehow had additional pressure applied over that period then the only thing that could really be causing the issue is between the pads and discs? Sintered pads could potentially corrode slightly and bind to the disc as a result, which I would imagine is what happened in which case I would expect to see witness marks on the disc(s) as well.

Mine was ridden in late November, rinsed off once done, and been sat in the garage until last week when I rolled it out to turn her over. No brake issues for me, so I don't know if maybe a rinse down before leaving it sitting for extended periods of time is a good idea? It something that I would generally do anyway just to make sure any potential corrosion is minimised.

As for why the previous Brembos didn't have the same issue, I can only guess that maybe they didn't use sintered pads? Or something along the 'different material' lines? Or you didn't leave it quite as long between rides? Or you actually rinsed the worst of the salt off before leaving it last time? Too many variables to be able to pinpoint the issue without knowing everything.

 

[Nick dj]

100% your warranty should start on delivery day with the new parts. I can’t see bmw not honouring that + something for goodwill. Discounted nav etc

Wrong -I have to pay for my repair as Brakes are not covered by warranty!!!!!!! 9000 miles 1 year old and No Salt just mud and muck!!

 

[Nick dj]

not pad grip

The dealer tells me the callipers "need stripping and Greasing" its not a pad sticking problem its the calliper Pistons!!! are they not covered by a rubber boot?

Again not a problem through 2 winter with Brembo callipers

 

[Daggerit]

The dealer tells me the callipers "need stripping and Greasing" its not a pad sticking problem its the calliper Pistons!!! are they not covered by a rubber boot?

Again not a problem through 2 winter with Brembo callipers

If I remember rightly, the seals around the piston generally have a rubber dust seal (unless you go for some top spec ones that do away with them for whatever reason) that stops things like this happening. I'd still maintain that unless you'd noticed them dragging or there was pressure applied within that six weeks that it's probably not that. There could be a process happening I can't fathom, but from an engineering perspective I can't get my head around their reasoning.

If they're charging you for it, I'd be inclined to take it to a trustworthy local instead (probably significantly cheaper in the first place) to look at and report back. If the calipers turn out to be alright then make sure they take lots of photos and evidence to send to BMW in writing and hopefully recover the costs of the work.

The user manual does state to rinse down the bike after every ride when salt is present though, so if there is something wrong with it due to corrosion they have a get of jail card on this one by the looks of things.

 

[spoonz]

Wrong -I have to pay for my repair as Brakes are not covered by warranty!!!!!!! 9000 miles 1 year old and No Salt just mud and muck!!

Hardly the same is it, not even close. The op bike is new and had leaks from day 1 from a known defect and he hasn’t used it. Yours have 6k and are sticking from road dirt by the sounds of it.

 

[spoonz]

If I remember rightly, the seals around the piston generally have a rubber dust seal (unless you go for some top spec ones that do away with them for whatever reason) that stops things like this happening. I'd still maintain that unless you'd noticed them dragging or there was pressure applied within that six weeks that it's probably not that. There could be a process happening I can't fathom, but from an engineering perspective I can't get my head around their reasoning.

If they're charging you for it, I'd be inclined to take it to a trustworthy local instead (probably significantly cheaper in the first place) to look at and report back. If the calipers turn out to be alright then make sure they take lots of photos and evidence to send to BMW in writing and hopefully recover the costs of the work.

The user manual does state to rinse down the bike after every ride when salt is present though, so if there is something wrong with it due to corrosion they have a get of jail card on this one by the looks of things.

Your right, the seal setup is identical to Brembo etc. An inner o ring and an outer wiper seal. The race type Calipers do away with the dust boot to reduce Stiction. They assume they will get pulled apart regularly in that scenario.

 

[Daggerit]

Your right, the seal setup is identical to Brembo etc. An inner o ring and an outer wiper seal. The race type Calipers do away with the dust boot to reduce Stiction. They assume they will get pulled apart regularly in that scenario.

Good to know. I've never torn down a set but have seen diagrams and things which are useful to get an idea of what's going on at least.

 

[Nick dj]

Your right, the seal setup is identical to Brembo etc. An inner o ring and an outer wiper seal. The race type Calipers do away with the dust boot to reduce Stiction. They assume they will get pulled apart regularly in that scenario.

Your both correct .

The dealer accepts cars don't have problems- tells me the callipers are high performance and need washing after every salty ride and regularly when road muck is building up! (How do M3s cars fare in winter )

I still say that Brembo didn't suffer this and Its an adventure bike, not a sports bike.
There was also another rider waiting for his bike back for the same problem!!

After paying I set off home only for the engine management light to remain on!!!
The exhaust flap valve has also seized and they are to replace the front pipes.
Quality bikes now BMWs

 

[spoonz]

Car Calipers have considerably bigger pistons so a much bigger surface area needs contamination to cause a problem. They are also not in direct dirty spray from vehicles etc in front like a motorcycle is and are shielded by a guard plate on the inside. Only the spray from their own wheels is generally hitting them.

Having said that mountain bike Calipers are in mud all day and rarely need touching so were there a generic Hayes problem appearing with sticking I would be pointing a finger at the design. But you and 1 other does not a generic problem make. It’s the first instance I have heard of and a few of my mates commute on theirs all year in all weathers. Only time will tell if it’s more common. I dare say there may be as many instances of contamination with Brembo Calipers if you really dug into it.

Different Caliper but 1 trip to Scotland in November caused problems for the Brembo gold line Calipers on my Aprilia. I washed it straight after the 3 day trip but it still ate the finish off the braided hoses and caused drag on the calipers due to corrosion on the pins. My mate was on a Suzuki ( Nissin Calipers) and failed to wash it for a few months and had to have a complete Caliper rebuild. Modern road salt is evil stuff, much more corrosive.

Flap valve is a long standing issue. Not just on BMW’s. No one seems to have got that one 100% right. A pain in the arse

 

[Nice 'n' Fat]

I seem to remember KTM refusing warranty on seized Brembo radials a few years back

 

[Deleted account 200705001]

There are currently 2 1250 GS / GSA bikes sitting in a dealers in the NE of Scotland with TFT screens lighting up like Christmas trees with multi faults showing . They either won’t start or if they do , run like a bag of nails . One as 400 odd miles on the clock , not sure about the other . One is owned by someone only has a bike licence and was told there was no loan bike available .

I am supposed to take a test ride tomorrow for a new GSA and I am going to ask some searching questions on the matter . Having said all that it a machine and they can fail no matter the cost I am aware that there are loads of very happy owners but it’s a hell of a risk to take if you end up with a defective bike and very little help on offer .

One final thought maybe in the greater scheme of things currently happening in the world , it’s just a 1st world issue .

Take care everyone .

 

[Packer]

..............Again not a problem through 2 winter with Brembo callipers

I rode an 1150 for 10 years and 96,000 miles. Brembo callipers. Every winter I had to strip off the calipers, pump the pistons part way out, clean and lubricate them. Funnily enough just had to have the calipers done on the S10 too. As it was in for MOT the shop ended up doing them.

 

[Packer]

................I am supposed to take a test ride tomorrow for a new GSA and I am going to ask some searching questions on the matter . Having said all that it a machine and they can fail no matter the cost I am aware that there are loads of very happy owners but it’s a hell of a risk to take if you end up with a defective bike and very little help on offer ... .

I'd have to check the source but about 18 months ago a survey showed the BMW products to be the least reliable apart from the cheap Chinese shonkers.

BM do have the best warranty support though. Just as well.