[pungo]

Originally Posted by khaul

Are newer X3 model made with plastic timing chain guides too?

Yes, they're all plastic, like most modern vehicles, thought BMW starting using a more reliable plastic construction in the later N20 engines.

With the early N20 engines, it's not if they will fail, but when, especially if maintenance followed BMW condition based oil change intervals during its life.

[Opie55]

Originally Posted by pungo

Yes, they're all plastic, like most modern vehicles, thought BMW starting using a more reliable plastic construction in the later N20 engines.

With the early N20 engines, it's not if they will fail, but when, especially if maintenance followed BMW condition based oil change intervals during its life.

What is the relationship between failure of a plastic piece over which a chain slides and oil change intervals? Sure, there is some oil on the slides, but it's not a heavily stressed wear surface requiring fresh oil like a rod bearing.

[pungo]

Originally Posted by Opie55

What is the relationship between failure of a plastic piece over which a chain slides and oil change intervals? Sure, there is some oil on the slides, but it's not a heavily stressed wear surface requiring fresh oil like a rod bearing.

Longer oil change intervals causes reduced lubrication effectiveness which causes several problems:

• Increased friction from old oil leads to more heat that is stressful for the fragile plastic guides.
• Causes extra wear on the timing chain that leads to chain stretch which puts extra stress on the plastic guides from the chain flapping around more.
• Extra wear on the timing chain guides rub surfaces due to less effective lubrication than puts extra stress on the plastic guides.

It all adds up, more often oil change intervals puts less stress on the entire timing chain system, especially one with inadequate plastic parts.

[apanner]

I ve recently bought x3 2013 x28- 115k kms. very good service history...
does my car will qualify for BMW timing chain replacement in Canada ?
so far no issues... working fine...

[tom2021]

There are several postings in the forum about it.
The lawsuit settlement is only for BMW USA, not including Canada.

[Tommy68]

Originally Posted by apanner

I ve recently bought x3 2013 x28- 115k kms. very good service history...
does my car will qualify for BMW timing chain replacement in Canada ?
so far no issues... working fine...

How is your car? Timing chain is still OK?

[Valleyguy]

I just read the string re: timing chain failures on X3s of 2013-2015 vintage. I have been complaining to BMW service about my 2014 X3 for the past 4 years about a whining noise that increases in tone/frequency in concert with engine rpm. I first asked them to look into in Jan, 2019 when mileage was 49, 810. 4 of the last 5 times I've brought it to their attention they couldn't hear/discern anything wrong. The last time, 3 weeks ago, they removed the serpentine belt to isolate the noise from compressor, etc. and diagnosed that my timing chain was about to fail. Knowing now of the past history of timing chain failures and the class action suit that was brought and decided in plaintiffs' favor, do I have any recourse on this 10 year old, 104k mileage X3? (they tell me it'll be $7,500 to repair; the car's only worth $8,000 currently on the street!)

[Fredo]

Originally Posted by Valleyguy

I just read the string re: timing chain failures on X3s of 2013-2015 vintage. I have been complaining to BMW service about my 2014 X3 for the past 4 years about a whining noise that increases in tone/frequency in concert with engine rpm. I first asked them to look into in Jan, 2019 when mileage was 49, 810. 4 of the last 5 times I've brought it to their attention they couldn't hear/discern anything wrong. The last time, 3 weeks ago, they removed the serpentine belt to isolate the noise from compressor, etc. and diagnosed that my timing chain was about to fail. Knowing now of the past history of timing chain failures and the class action suit that was brought and decided in plaintiffs' favor, do I have any recourse on this 10 year old, 104k mileage X3? (they tell me it'll be $7,500 to repair; the car's only worth $8,000 currently on the street!)

Check this thread.

https://www.e90post.com/forums/showthread.php?t=1358819

[tom2021]

Originally Posted by Valleyguy

I just read the string re: timing chain failures on X3s of 2013-2015 vintage. I have been complaining to BMW service about my 2014 X3 for the past 4 years about a whining noise that increases in tone/frequency in concert with engine rpm. I first asked them to look into in Jan, 2019 when mileage was 49, 810. 4 of the last 5 times I've brought it to their attention they couldn't hear/discern anything wrong. The last time, 3 weeks ago, they removed the serpentine belt to isolate the noise from compressor, etc. and diagnosed that my timing chain was about to fail. Knowing now of the past history of timing chain failures and the class action suit that was brought and decided in plaintiffs' favor, do I have any recourse on this 10 year old, 104k mileage X3? (they tell me it'll be $7,500 to repair; the car's only worth $8,000 currently on the street!)

https://x3.xbimmers.com/forums/showthread.php?t=1999695
BMWNA agreed to pay a goodwill for his case.