BMW Used Car Brake Discs & EGR
Discussion
Evening All,
Would like to get peoples thoughts on the below which i currently experienced with my car.
I bought a 65 plate 520d msport in Feb 18 from a bmw dealer, it is still under the 12 month warranty.
So since the purchase i have it 8 months and only ran up 1,800 miles.
I went in for my mot and end of manufacturer warrany check.
I got two advisories of the disc worn, corrosion and pitting on 2 wheels and there is signs of it on a third wheel.
this clearly hasnt developed in the 8 months i have had it and obviously the car was sold with it.
Do you think i am right to request the bmw to replace them?
also while i was there i was notified my car has been recalled for the egr but i had not been notified or informed of this until this morning when i went to the bmw service garage
Would like to get peoples thoughts on the below which i currently experienced with my car.
I bought a 65 plate 520d msport in Feb 18 from a bmw dealer, it is still under the 12 month warranty.
So since the purchase i have it 8 months and only ran up 1,800 miles.
I went in for my mot and end of manufacturer warrany check.
I got two advisories of the disc worn, corrosion and pitting on 2 wheels and there is signs of it on a third wheel.
this clearly hasnt developed in the 8 months i have had it and obviously the car was sold with it.
Do you think i am right to request the bmw to replace them?
also while i was there i was notified my car has been recalled for the egr but i had not been notified or informed of this until this morning when i went to the bmw service garage
You mention 'end of warranty check', so presumably it's just within its three year manufacturers warranty.
BMW will swap the wheels suffering from 'white worm' corrosion under the lacquer for new wheels free of charge, as long as you haven't got damage from kerbing on the rim. If there is kerbing damage you might have to pay a marginal amount toward the new wheel.
I had all four wheels renewed free of charge at my end of warranty check when I raised the issue of corrosion with the Service Advisor.
The process calls for the Dealer to send high quality pictures to BMW UK to approve the work. Then it's all plain sailing.
On the EGR front it's not a full recall that they are doing, I believe they're calling it a 'technical recall' in the UK. Quite how they are getting away with this I'm not sure as it's quite a serious issue. It seems from other people's experiences that parts (EGR) are in short supply at the moment.
BMW will swap the wheels suffering from 'white worm' corrosion under the lacquer for new wheels free of charge, as long as you haven't got damage from kerbing on the rim. If there is kerbing damage you might have to pay a marginal amount toward the new wheel.
I had all four wheels renewed free of charge at my end of warranty check when I raised the issue of corrosion with the Service Advisor.
The process calls for the Dealer to send high quality pictures to BMW UK to approve the work. Then it's all plain sailing.
On the EGR front it's not a full recall that they are doing, I believe they're calling it a 'technical recall' in the UK. Quite how they are getting away with this I'm not sure as it's quite a serious issue. It seems from other people's experiences that parts (EGR) are in short supply at the moment.
Edited by Techno9000 on Saturday 13th October 19:43
Irishsider9 said:
I think it was an underlying issue when i bought the car.
Based on what exactly?! 3yr old car (lives outside I guess? Certainly might have done before you bought it), does low miles (at low speed if you are in London) and suffers brake disc corrosion?
This shouldn't be a shock to anyone!
I'd be surprised if bmw are interested.
Don't forget that a mot advisory is exactly that. It's the testers opinion. Get the disc thickness measured to see how worn they are.
DuraAce said:
Based on what exactly?!
Big, heavy, 3yr old car (lives outside I guess? Certainly might have done before you bought it), does low miles (at low speed if you are in London) and suffers brake disc wear/corrosion?
This shouldn't be a shock to anyone!
I'd be surprised if bmw are interested.
Don't forget that a mot advisory is exactly that. It's the testers opinion. Get the disc thickness measured to see how worn they are.
Big, heavy, 3yr old car (lives outside I guess? Certainly might have done before you bought it), does low miles (at low speed if you are in London) and suffers brake disc wear/corrosion?
This shouldn't be a shock to anyone!
I'd be surprised if bmw are interested.
Don't forget that a mot advisory is exactly that. It's the testers opinion. Get the disc thickness measured to see how worn they are.
Irishsider9 said:
. The bmw mechanic even agreed with me that the corrosion in question could not happen in 8 months.
Get him to replace them then? Did you get them measured for thickness?
Kind of obvious that it hasn't all happened in 8 months though isn't it? It's a cumulative effect that has been occuring since the car was built. (same as every other car on the road. Discs are exposed metal and will corrode over time)
DuraAce said:
Get him to replace them then?
Did you get them measured for thickness?
Kind of obvious that it hasn't all happened in 8 months though isn't it? It's a cumulative effect that has been occuring since the car was built. (same as every other car on the road. Discs are exposed metal and will corrode over time)
Correct and the mechanic said no second hand car should be sold with any signs of corrosion on it.Did you get them measured for thickness?
Kind of obvious that it hasn't all happened in 8 months though isn't it? It's a cumulative effect that has been occuring since the car was built. (same as every other car on the road. Discs are exposed metal and will corrode over time)
Irishsider9 said:
the car is kept in an underground car park. The bmw mechanic even agreed with me that the corrosion in question could not happen in 8 months.
It certainly could happen in 8 months. Discs will have a light covering of rust after a few hours if left wet. It can soon develop into heavier corrosion. What were they like when you got the car? Surely if they were heavily corroded you’d have noticed? Don’t you ever wash the thing, check the tyre pressures? How could you miss heavily corroded discs?
REALIST123 said:
It certainly could happen in 8 months. Discs will have a light covering of rust after a few hours if left wet. It can soon develop into heavier corrosion.
What were they like when you got the car? Surely if they were heavily corroded you’d have noticed? Don’t you ever wash the thing, check the tyre pressures? How could you miss heavily corroded discs?
I didnt check them when i got a car, probably a bit nieve of me, but it was my first car and i bought from BMW rather than others as i expected to not have any issues.What were they like when you got the car? Surely if they were heavily corroded you’d have noticed? Don’t you ever wash the thing, check the tyre pressures? How could you miss heavily corroded discs?
Irishsider9 said:
DuraAce said:
Get him to replace them then?
Did you get them measured for thickness?
Kind of obvious that it hasn't all happened in 8 months though isn't it? It's a cumulative effect that has been occuring since the car was built. (same as every other car on the road. Discs are exposed metal and will corrode over time)
Correct and the mechanic said no second hand car should be sold with any signs of corrosion on it.Did you get them measured for thickness?
Kind of obvious that it hasn't all happened in 8 months though isn't it? It's a cumulative effect that has been occuring since the car was built. (same as every other car on the road. Discs are exposed metal and will corrode over time)
I can see why he's a mechanic, and not buying and selling cars - He'd lose all his profits on brake disc replacements!
If the discs have got surface corrosion on their pad contact surfaces, corroded lips at their outer edges, or corrosion on the hubs (very common on BMW's), BMW are not going to replace them prior to sale because:
Surface corrosion on the pad contact surface will wear off with brake usage.
Corroded lips are only an issue if they extend into the pad contact area and the pads grab onto them.
Corroded hubs are purely a cosmetic issue.
The only time BMW will replace discs with corrosion on them at the time of sale, is if they have pitted corrosion in the surface of the discs where the pads make contact, or as stated above, if there is lip corrosion encroaching into the pad contact area.
After 8 months of you driving the car? - I'd say you've got two chances of BMW replacing your discs for free: Slim, and none - And Slim's just left town!
Irishsider9 said:
REALIST123 said:
It certainly could happen in 8 months. Discs will have a light covering of rust after a few hours if left wet. It can soon develop into heavier corrosion.
What were they like when you got the car? Surely if they were heavily corroded you’d have noticed? Don’t you ever wash the thing, check the tyre pressures? How could you miss heavily corroded discs?
I didnt check them when i got a car, probably a bit nieve of me, but it was my first car and i bought from BMW rather than others as i expected to not have any issues.What were they like when you got the car? Surely if they were heavily corroded you’d have noticed? Don’t you ever wash the thing, check the tyre pressures? How could you miss heavily corroded discs?
Having said all that how bad are they really? Any pics?
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