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      03-26-2016, 12:47 PM   #1
die$el<3
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reliability questions

I know this topic has been beaten to death, but I was wondering how many of us in here have over 120k miles? also what sort of issues have you ran into? I was reading the post about the member who had the nox sensors go bad and spent $2k in repairs and it got me thinking if its time to let my car go before it happens to me. I guess my questions is regarding the emissions system and is it a ticking time bomb?
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      03-26-2016, 02:19 PM   #2
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There is a thread on another forum that has lots of,folks reporting crossing 100k with few if any issues. Don't let the chicken littles in the forum scare you, as the ones with problems tend to post.

Basically these cars are pretty solid except for,the emissions. Do an abc delete and you won't have the nox issue. However an abc delete will cost more than fixing the nox tank. Figure 800-1200 for a tune, 750 for a down pipe, and 1000 in labor to gut the scr and do the downpipe. Oh plus 75 for an egr block

With that said, I've owned my 2011d car less than a year and it's been in the shop 8 time for various failures, and right now it's been in 6 times since Jan 20th for a ses light no one can seem to fix.



If your worried and don't want to wrench, get an extended warranty, or trade it. Route 66 comes to mind. Car and driver says in many articles never own a BMW out of warranty. I don't have one as I'm the gambling type. However after my 6th visit to the dealer in less than 2 months I'm reconsidering it. I might get the Route 66 on, or trade the car. But damn mine is broken a lot.

There are lots of fun to drive cars that aren't always braking down. GTI, BMW 235, mustang Gt350. I'm eyeing a cpo 535.

Last edited by Thecastle; 03-26-2016 at 02:34 PM..
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      03-26-2016, 02:41 PM   #3
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That's exactly my concern is the start things going wrong and it turning into a snowball.

I would love to do the abc delete and emissions but the issue I have is that I live in California and im concerned about passing smog down the road. If it can be done and I can pass smog id love to keep the car and do the deletes.
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      03-26-2016, 05:41 PM   #4
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I have 41k on my car and have been running a rentech tune for about 15k. No major issues to report. I had the SCR tank replaced by CPO, and I think I beat on my ride's trunk once when it was frozen and the trunk latch/wiring had to be replaced. Besides that nothing. I expect CBU and will drive the 2 hr drive to BPC to have it cleaned and abc deleted. If I was in Cali, I don't think I would own the car. For me longevity is important and I have a belief it will be good post abc delete. My state is better for that than yours. I could also register the car in SC if The home state changes its mind on Diesel... But Cali is only going to make it worse.

In Cali, I don't know the best option for you...i think those guys just plan on paying the price to the party every 50k or so

Last edited by JayNC335d; 03-27-2016 at 01:55 PM..
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      03-26-2016, 08:06 PM   #5
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122k here. Only the regular issues like ses light for piss tank, scr, etc, cbu but that was all handled under warranty by P/o. Only issue I've had since owning was the crank pulley.

Once fully deleted these cars are pretty sound
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      03-26-2016, 09:00 PM   #6
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Quote:
Originally Posted by petey_highboost View Post
122k here. Only the regular issues like ses light for piss tank, scr, etc, cbu but that was all handled under warranty by P/o. Only issue I've had since owning was the crank pulley.

Once fully deleted these cars are pretty sound
what were the symptoms of a bad crank pulley ?
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      03-28-2016, 04:01 PM   #7
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Quote:
Originally Posted by die$el&lt View Post
Quote:
Originally Posted by petey_highboost View Post
122k here. Only the regular issues like ses light for piss tank, scr, etc, cbu but that was all handled under warranty by P/o. Only issue I've had since owning was the crank pulley.

Once fully deleted these cars are pretty sound
what were the symptoms of a bad crank pulley ?
Intermittent loss of powersteering and battery charge
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      03-28-2016, 07:41 PM   #8
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Quote:
Originally Posted by petey_highboost View Post
Intermittent loss of powersteering and battery charge
and A/C
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      03-28-2016, 08:39 PM   #9
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Originally Posted by montr
Quote:
Originally Posted by petey_highboost View Post
Intermittent loss of powersteering and battery charge
and A/C
Yessir that too
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      03-28-2016, 08:43 PM   #10
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Quote:
Originally Posted by JayNC335d
I have 41k on my car and have been running a rentech tune for about 15k. No major issues to report. I had the SCR tank replaced by CPO, and I think I beat on my ride's trunk once when it was frozen and the trunk latch/wiring had to be replaced. Besides that nothing. I expect CBU and will drive the 2 hr drive to BPC to have it cleaned and abc deleted. If I was in Cali, I don't think I would own the car. For me longevity is important and I have a belief it will be good post abc delete. My state is better for that than yours. I could also register the car in SC if The home state changes its mind on Diesel... But Cali is only going to make it worse.

In Cali, I don't know the best option for you...i think those guys just plan on paying the price to the party every 50k or so
I'm only at 86k, but yes, the plan is pay-to-play once CPO runs out next year. I love the car too much to let it go. I'm so dumb.

But I can't think of any car I want right now. M2 in several years? E90 M3? How's the reliability on that?
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      03-29-2016, 01:29 AM   #11
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Quote:
Originally Posted by die$el<3 View Post
what were the symptoms of a bad crank pulley ?
On mine it was quite rattly noisy at idle.
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      04-21-2016, 10:08 PM   #12
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Had something sadly funny happen to me today at BMW service....

Went in to get my 2011 335d which was in all week (since Monday) after SES light for an exhaust pressure sensor, rail pressure sensor, and front thrust arm bushings repair.

Saw the cashier, turned in my loaner key, went out to greet the guy who was bringing my car around. He opened the door and said:

"Were you in for a service engine soon light, sir?"
"Yes"
"The light is on now again. Let me get your SA for you."

SO, 1 hour round trip drive to dealership, and still no car. This is borderline comedy.

Anyone else ever had a repair which ended with you not even getting to drive the repaired car off the lot because something else ALREADY went wrong, again?
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      04-21-2016, 11:25 PM   #13
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Quote:
Originally Posted by die$el&lt View Post
That's exactly my concern is the start things going wrong and it turning into a snowball.

I would love to do the abc delete and emissions but the issue I have is that I live in California and im concerned about passing smog down the road. If it can be done and I can pass smog id love to keep the car and do the deletes.
If you live in California surely your car is registered in a county that does not require smog renewal with registration renewal. Do a web search to check your county. I am also planning on driving my car into the ground. I think any major tuning modifications simply preclude being able to sell it unless it is purely for track use. I also got in an accident with my car that mildly damaged a rear quarter panel so my resale value is effectively nada.
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      04-21-2016, 11:51 PM   #14
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Quote:
Originally Posted by larrysing View Post
"Were you in for a service engine soon light, sir?"
"Yes"

Anyone else ever had a repair which ended with you not even getting to drive the repaired car off the lot because something else ALREADY went wrong, again?
Took my car in for rough idle and zero adaptation on one of the cylinders December 2014. Assumed the issue was CBU, but they ruled that out. Had car for two weeks during which time I drove a 528. Went to pick up my car when they called and SES light was on. Left car another few days. They called and said car was ready again. So car had been there three weeks. I got in the d and had made it a few miles when the SES light reappeared. Back to BMW for another 10 days. In total, the d was in the shop for just over a month. And I think it was always the same issue - just had not been fully resolved until the last week.

Drove it for 11 months after that with zero issues. When the next SES light appeared, I took the car to BPC.
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      04-22-2016, 06:10 AM   #15
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Quote:
Originally Posted by larrysing View Post
Had something sadly funny happen to me today at BMW service....

Went in to get my 2011 335d which was in all week (since Monday) after SES light for an exhaust pressure sensor, rail pressure sensor, and front thrust arm bushings repair.

Saw the cashier, turned in my loaner key, went out to greet the guy who was bringing my car around. He opened the door and said:

"Were you in for a service engine soon light, sir?"
"Yes"
"The light is on now again. Let me get your SA for you."

SO, 1 hour round trip drive to dealership, and still no car. This is borderline comedy.

Anyone else ever had a repair which ended with you not even getting to drive the repaired car off the lot because something else ALREADY went wrong, again?
Yup same thing here, damn car is always broken. I've had it in the dealer 7 times in the last 3 months for the same issue, egr implausibility, and exhaust pressure sensor. Under warranty, among other things that have failed. I think my car has been in the shop 50% of its life since January. It's a 2011, does the d stand for defective? But I will attest, other then engine and emissions issues, the car has been fine reliably wise.

But sadly, spending 1200 for a tune, 750 for a down pipe, and 1000 in labor to mod the car so it will run well is a lot of money. Plus the downsides of extra noise, lower driven train life, harder to repair a tuned car, just so it won't break every other week. Though I would like some extra power :-)

Yes you can mod it, but it won't fix the oil leaks from turbo hoses, vacuum leaks, harmonic balancer failures, etc. so bpc or JR isn't a silver bullet to reliably, but it will make one trouble spot cbu and emissions problems better.

No long term info on bpc tune reliability, they've been selling tune for less than a year and have gone through several versions. Which on one hand is great that they support us so heavily.
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      04-22-2016, 08:37 PM   #16
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Quote:
Originally Posted by Thecastle View Post
Yup same thing here, damn car is always broken. I've had it in the dealer 7 times in the last 3 months for the same issue, egr implausibility, and exhaust pressure sensor. Under warranty, among other things that have failed. I think my car has been in the shop 50% of its life since January. It's a 2011, does the d stand for defective? But I will attest, other then engine and emissions issues, the car has been fine reliably wise.

But sadly, spending 1200 for a tune, 750 for a down pipe, and 1000 in labor to mod the car so it will run well is a lot of money. Plus the downsides of extra noise, lower driven train life, harder to repair a tuned car, just so it won't break every other week. Though I would like some extra power :-)

Yes you can mod it, but it won't fix the oil leaks from turbo hoses, vacuum leaks, harmonic balancer failures, etc. so bpc or JR isn't a silver bullet to reliably, but it will make one trouble spot cbu and emissions problems better.

No long term info on bpc tune reliability, they've been selling tune for less than a year and have gone through several versions. Which on one hand is great that they support us so heavily.
These cars can easily handle moderate power increase without drive train issues if driven sensibly. Most of the failures you mention are on cars higher mileage cars with multiple owners. There will always be a trade off reliability vs. performance.
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      04-22-2016, 09:41 PM   #17
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Quote:
Originally Posted by tek4tex View Post
These cars can easily handle moderate power increase without drive train issues if driven sensibly. Most of the failures you mention are on cars higher mileage cars with multiple owners. There will always be a trade off reliability vs. performance.
I had more failures and more problems than the previous post. I am the first owners, the car was custom ordered, pick up at the SC performance center and maintain by the book if not more.
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      04-22-2016, 09:54 PM   #18
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Quote:
Originally Posted by Thecastle View Post
But sadly, spending 1200 for a tune, 750 for a down pipe, and 1000 in labor to mod the car so it will run well is a lot of money. Plus the downsides of extra noise, lower driven train life, harder to repair a tuned car, just so it won't break every other week. Though I would like some extra power :-)
Well, total dollar cost, that is not much, compared to "out of warranty" engine repairs on these cars. I spent $2655.00 cold hard cash money on a "non-warrantied" emissions repair last month. This exact same repair is warrantied by BMW for 24 months - but what happens if I see it in month 25 again?

The BPC tune and the ABC delete would have prevented that - and many other emissions repairs.

I'm quickly coming to form the opinion that if you want to keep these cars and be able to afford them long-term, the emissions bypass/delete is the best plan. There will always be hoses and tubes and maintenance stuff to replace on any high(ish)-performance car.
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      04-23-2016, 02:48 AM   #19
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Quote:
Originally Posted by Thecastle View Post
Yup same thing here, damn car is always broken. I've had it in the dealer 7 times in the last 3 months for the same issue, egr implausibility, and exhaust pressure sensor. Under warranty, among other things that have failed. I think my car has been in the shop 50% of its life since January. It's a 2011, does the d stand for defective? But I will attest, other then engine and emissions issues, the car has been fine reliably wise.

But sadly, spending 1200 for a tune, 750 for a down pipe, and 1000 in labor to mod the car so it will run well is a lot of money. Plus the downsides of extra noise, lower driven train life, harder to repair a tuned car, just so it won't break every other week. Though I would like some extra power :-)

Yes you can mod it, but it won't fix the oil leaks from turbo hoses, vacuum leaks, harmonic balancer failures, etc. so bpc or JR isn't a silver bullet to reliably, but it will make one trouble spot cbu and emissions problems better.

No long term info on bpc tune reliability, they've been selling tune for less than a year and have gone through several versions. Which on one hand is great that they support us so heavily.
I have been running a BPC tune of one form or another since February 2015 and have subsequently put 28,000 miles on my car with ZERO issues. I have not had an SES light come on the entire time I have owned the car (May'14 21,000 miles) which currently has 62,000 miles on it. Prior to my BPC tune, I was running a RennTech tune also without experiencing any problems. The JBD went on my car the 2nd day I got it.

The ONLY issue I have had with my car was the leaky seals from the OEM boost hose followed by the Forge boost hose splitting at the 1st drag strip event I took it to. Other than that, zero problems with the engine and zero transmission problems.

I change the oil and other fluids regularly. Tranny fluid was changed at 42,000 miles and turbo hoses were replaced when stock turbos were swapped out for hybrids. CBU cleaning was also performed as a preventative measure at approx. 36,000 miles.
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      04-23-2016, 05:31 AM   #20
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Originally Posted by larrysing View Post
I'm quickly coming to form the opinion that if you want to keep these cars and be able to afford them long-term, the emissions bypass/delete is the best plan.
Yes
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      04-23-2016, 09:22 AM   #21
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Quote:
Originally Posted by larrysing View Post

I'm quickly coming to form the opinion that if you want to keep these cars and be able to afford them long-term, the emissions bypass/delete is the best plan. There will always be hoses and tubes and maintenance stuff to replace on any high(ish)-performance car.
I agree as well, the most cost effective other than extended warranty is to remove the emissions equipment.. The emissions equipment on a lot of the Ds is not reliable. I've never seen a group of cars have so many issues in one area. But I do keep in mind there are a lot of folks who make it over 100k miles without an emissions failure.

However exempting the emissions problems on my car, 3 egr valves, 4 egr coolers, dpf repalacment, cbu cleaning, 4 exhaust pressure sensors....

I've had an average id say number of other problems.

I don't mean this to sound negative, I love the car and it's my dream car. But damn I've never owned a car that has had anything fail in the emissions equipment, let alone multiple times like these car. Hell this car only has 45k miles, and it's a 2011.
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      04-23-2016, 11:06 AM   #22
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Quote:
Originally Posted by Thecastle View Post
I agree as well, the most cost effective other than extended warranty is to remove the emissions equipment.. The emissions equipment on a lot of the Ds is not reliable. I've never seen a group of cars have so many issues in one area. But I do keep in mind there are a lot of folks who make it over 100k miles without an emissions failure. However exempting the emissions problems on my car, 3 egr valves, 4 egr coolers, dpf repalacment, cbu cleaning, 4 exhaust pressure sensors.... I've had an average id say number of other problems. I don't mean this to sound negative, I love the car and it's my dream car. But damn I've never owned a car that has had anything fail in the emissions equipment, let alone multiple times like these car. Hell this car only has 45k miles, and it's a 2011.
I saw a great quote on a thread somewhere in which a member called the 335d "a diesel experiment on wheels" and that stuck with me as being wholly accurate.
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