[ideloera]

Originally Posted by floydarogers

Other reported problem areas are:
1) Glow plugs and their controller
2) Melting hoses for turbo pressure management (and DPF management)
3) Leaking turbo oil hoses.
4) Zero-adaptation problems for injectors - although I wonder if some of that is due to CBU. Mine occurred at about 5K miles, however.
5) A few - very few - MAFs have failed.

Really, they've been very reliable. Even the transmission seems solid (knock on wood.)

I did have a leaking turbo oil hose, but replaced that and purchased through fcp, happens again i'll send it in and get a new one for free.

I come from Ferrari ownership, so the repair prices dont have me that jaded, but reliability did. After the deletes and taking pretty long drives (from Chicago to the east coast and back), I haven't had any issues and think the car is very reliable now. When I check the oil, it is not black anymore, nice and amber oil looking color.

[Thecastle]

Originally Posted by floydarogers

Other reported problem areas are:
1) Glow plugs and their controller
2) Melting hoses for turbo pressure management (and DPF management)
3) Leaking turbo oil hoses.
4) Zero-adaptation problems for injectors - although I wonder if some of that is due to CBU. Mine occurred at about 5K miles, however.
5) A few - very few - MAFs have failed.

Really, they've been very reliable. Even the transmission seems solid (knock on wood.)

I'd add to the list
6) lots of harmonic damper failures
7) some turbos blow their seals
8) a few transmission failures
9) sensor failures maf, nox, o2, pressure sensor
10) red boost hose
11) headlight issues
12) egr cooler (they crack)
14) ac failures
15) dde failures
16) turbo change over valve failures and lots of loss of low rpm boost
17) plus all the other common e90 failures


On my personal car, ive had CBU, 3x egr valve failures, 4x egr cooler failures. 3x maf sensor failures, 2x vaccum hose failures, 3x exhaust pressure sensor failures, dpf failed, windshield washer pump, headlight level sensor, nox sensors, rear subframe mounts worn out

But my car has never left me dead on the side of the road and always runs great, it just. Comes with a Christmas themed dash, all with less than 47k miles

[hybridp]

Originally Posted by Thecastle

I'd add to the list
6) lots of harmonic damper failures
7) some turbos blow their seals
8) a few transmission failures
9) sensor failures maf, nox, o2, pressure sensor
10) red boost hose
11) headlight issues
12) egr cooler (they crack)
14) ac failures
15) dde failures
16) turbo change over valve failures and lots of loss of low rpm boost
17) plus all the other common e90 failures


On my personal car, ive had CBU, 3x egr valve failures, 4x egr cooler failures. 3x maf sensor failures, 2x vaccum hose failures, 3x exhaust pressure sensor failures, dpf failed, windshield washer pump, headlight level sensor, nox sensors, rear subframe mounts worn out

But my car has never left me dead on the side of the road and always runs great, it just. Comes with a Christmas themed dash, all with less than 47k miles

Most of yours would def seem emissions related though? That common theme from my years of lurking is that the sooner you do alphabet delete and tune the better off you are. That on top of harmonic balancer pulley and maybe porting the waste gate seems to take care of most people's issues?

[Thecastle]

Originally Posted by hybridp

Most of yours would def seem emissions related though? That common theme from my years of lurking is that the sooner you do alphabet delete and tune the better off you are. That on top of harmonic balancer pulley and maybe porting the waste gate seems to take care of most people's issues?

My personal problems, mostly emissions related. With the exception of windshield washer pump dying, head light level sensor taking a crap and having headlights go into truffle hunting mode, BT crackling, windows tearing up window tint (modded mine to not do that), side wall bubbles (got rid of run flats), and a lose rear end from weakened subframe mounts. Other than that my car runs like a twin turbo champ, with warning lights. Its like BMW is reminding me to have fun, but not too much fun. Sadly my wife an I were realizing today that since April 1st, the car has only been out of the shop for 5 days :-(. I'm rapidly approaching 6 weeks with the latest round of mystery problems. Though its been entirely under warranty, and I do like the 2016 X5 loaner I have.

meh, in my opinion, I'd say the ABC's are a major source of reliability issues. But to say the rest of the car is bullet proof is a stretch (no where near benchmarks like Toyota). I just want folks to go in knowing the rest of the car is typical BMW. While I say BMW should be embarrassed at how shitty the reliability of the emissions system is. The rest of the car is average German, oil leaks, vacuum hose failures, boost hoses, harmonic dampeners, evaporator failures, glow plugs, are all fairly common on this car even with ABC deletes. I mean come on my turbo oil pressure line is weaping oil, and I've already had to replace burned through vaccum lines for the turbo on this car and its a 2011 with 47K miles. I wouldn't expect stuff like this to fail so early.

[JayNC335d]

Wow, these list are horrific. My 2 cents, I have a 2011 with sport package, I bought with 17k as 2nd owner. I have had a SCR tank issue and NOx sensor, but that's it, and I am at 47k, with one more CPO year left. There might just be a ton of variation in the quality, but I also religiously avoid short trips. I am not as good as some on here with 50 mile commutes, but I never take it for short grocery store runs.

I run a renntech tune but no deletes (yet). The horror stories are pretty bad, but there are some owners out there that some how haven't been plagued like the others, they just tend to be content to not contribute as much. Best of luck to others that roll the dice, it's worth the reward imo

[ideloera]

Any of you guys who are running their 335ds without deletes add any diesel additive at every fill-up? Curious to see if those adding additives (Redline Diesel Catalyst, Diesel Kleen, etc.) are having less issues.

[JayNC335d]

I do, but have only been doing it for the last5-10k

[Thecastle]

Originally Posted by JayNC335d

Wow, these list are horrific. My 2 cents, I have a 2011 with sport package, I bought with 17k as 2nd owner. I have had a SCR tank issue and NOx sensor, but that's it, and I am at 47k, with one more CPO year left. There might just be a ton of variation in the quality, but I also religiously avoid short trips. I am not as good as some on here with 50 mile commutes, but I never take it for short grocery store runs.

I run a renntech tune but no deletes (yet). The horror stories are pretty bad, but there are some owners out there that some how haven't been plagued like the others, they just tend to be content to not contribute as much. Best of luck to others that roll the dice, it's worth the reward imo

I would agree there is a ton of variation in quality. I read in another forum lots of folks running 100k miles with few if any problems. Even my own service advisors says quite a few diesels never have anything other than routine maintainece. Then there are ones like mine which can't seem to get more than 100 miles from a service bay without getting lonesome.....

All cars have their issues, and I've never had cars other than subarus tha had zero problems.

[Yozh]

Originally Posted by Thecastle

I would agree there is a ton of variation in quality.

Also, add a ton of variation in service centers' ability to diagnose and fix problems with BMWs.

[Thecastle]

Originally Posted by Yozh

Also, add a ton of variation in service centers' ability to diagnose and fix problems with BMWs.

Yeah, clearly!

Not to defend the service departments, but I think it's a lack of BMW diesels on the road and the fact many of the dealers rarely see them and this lack of experience makes them tough to work on. Also BMW dosent really let the techs diagnoise cars from my understanding. They pull codes and do what the mothership tells them, which is replace parts on this list until the error code goes away. In my case this failed.

So now bmws current strategy is they are flying in bmws master tech for the southern us every week to work on my car, it's got to be costing a fortune, and still no resolution. They're just replacing parts that have been replaced before when in my cars case it's likely a dde failure, but they won't replace the dde until,the master tech has his chance to replace the same parts agin,

P.s. BMW has 2 master techs for the us, that they do fly to car dealers when their struggling. My car also has a puma case open.

[Persian Whisperjet]

Originally Posted by Thecastle

Not to defend the service departments, but I think it's a lack of BMW diesels on the road and the fact many of the dealers rarely see them and this lack of experience makes them tough to work on. Also BMW dosent really let the techs diagnoise cars from my understanding.

Yes!

[montr]

Originally Posted by Thecastle

Yeah, clearly!

Not to defend the service departments, but I think it's a lack of BMW diesels on the road and the fact many of the dealers rarely see them and this lack of experience makes them tough to work on. Also BMW dosent really let the techs diagnoise cars from my understanding. They pull codes and do what the mothership tells them, which is replace parts on this list until the error code goes away. In my case this failed.

So now bmws current strategy is they are flying in bmws master tech for the southern us every week to work on my car, it's got to be costing a fortune, and still no resolution. They're just replacing parts that have been replaced before when in my cars case it's likely a dde failure, but they won't replace the dde until,the master tech has his chance to replace the same parts agin,

P.s. BMW has 2 master techs for the us, that they do fly to car dealers when their struggling. My car also has a puma case open.

That is correct. The tech at the dealer connect the car to a diagnostic computer that is connected to the BMW "mothership". Tech has to do whatever computer tell him to do, if they want to get reimbursed by the BMW warranty (OEM or CPO)

[hybridp]

Good to read. It is odd. I know someone on the other hand with a completely stock 335d with prob over 100k and not a single issue to date. When it comes down to it a Passat TDI SEL is looking more and more likely since I drive about 40k miles a year so tank capacity and MPG's are priority, and not spending tons of time working on the car or worrying when something is gonna break without dumping like 3k into it right away to do the abc delete

[Thecastle]

Yeah, clearly their is a large variation in reliability of use 335/x5 diesels with the m57 engine. I too have read about quite a few folks who've gone 100k miles with few if any problems. Though there are clearly a large % of these cars that are very troublesome, and it's not clear BMW knows why. I'm gonna take a WAG (wild ass guess) and say 10-20% have chronic emissions failures, and nearly 80% who are stock run into cbu before 100k miles.

Also few of the 100k stock cars will make it with out a cbu cleaning and a scr system failure. I have a friend of mine who owns a sister car a 2011 335d who at 90k miles had 0 issues until the dreaded cbu and now a scr tank level sensor failure.

I think there is nothing like these cars on the road, however haha a large number don't seem to be able to stay on the road.

One other tidbits, my service advisor is saying they're seeing 535d with the new Diesel engine also showing up with cbu. Doesn't seem to be a resolved issue. No words on the 328d, few have been sold.

[kydiesel35]

Originally Posted by Thecastle

Yeah, clearly their is a large variation in reliability of use 335/x5 diesels with the m57 engine. I too have read about quite a few folks who've gone 100k miles with few if any problems. Though there are clearly a large % of these cars that are very troublesome, and it's not clear BMW knows why. I'm gonna take a WAG (wild ass guess) and say 10-20% have chronic emissions failures, and nearly 80% who are stock run into cbu before 100k miles.

Also few of the 100k stock cars will make it with out a cbu cleaning and a scr system failure. I have a friend of mine who owns a sister car a 2011 335d who at 90k miles had 0 issues until the dreaded cbu and now a scr tank level sensor failure.

I think there is nothing like these cars on the road, however haha a large number don't seem to be able to stay on the road.

One other tidbits, my service advisor is saying they're seeing 535d with the new Diesel engine also showing up with cbu. Doesn't seem to be a resolved issue. No words on the 328d, few have been sold.

How many (09-11) 335d are currently in the USA?

I would say the new BMW 3.0d is the same engine with higher egr emissions. That's probably why CBU has showed up so early on the 535d. It has less horsepower so probably under injected as well...

With "bolt ons" the only thing people on this forum should be worried about is harmonic damper (ETA 6 months Fluidampr), and vac lines...

Everything else seems pretty solid. Before my stage 3 I ran the 2 with no problems for a year (20k). Before my car history was numerous emission tank issues egr and CBU. When I switched to the 3 there were just a lot of install tweaks that had to be "tinkered" with.

After a year in the stage 3 I will do a thorough honest review. But IMO the more you mod the better off this car is!

[Thecastle]

Originally Posted by kydiesel35

How many (09-11) 335d are currently in the USA?

I would say the new BMW 3.0d is the same engine with higher egr emissions. That's probably why CBU has showed up so early on the 535d. It has less horsepower so probably under injected as well...

With "bolt ons" the only thing people on this forum should be worried about is harmonic damper (ETA 6 months Fluidampr), and vac lines...

Everything else seems pretty solid. Before my stage 3 I ran the 2 with no problems for a year (20k). Before my car history was numerous emission tank issues egr and CBU. When I switched to the 3 there were just a lot of install tweaks that had to be "tinkered" with.

After a year in the stage 3 I will do a thorough honest review. But IMO the more you mod the better off this car is!

Probably in the 7k-10k range of totally number of 335ds sold. The 2011 year was the best selling year, but figures are hard to come by.

As for the 535d it's a new engine design N57 single turbo. It's unfortunate BMW wasn't able to resolve the cbu issue even with this car. It just would take an egr system post dpf to make this situation.

There are more failures that are common to these cars than just harmonic damper, and vacuum lines. See our lists above about injector failures, oil leaks, glow plugs etc. but clearly emissions failures and cbu are the most common on low image cars. Also lots of boost hose failures.

I look forward to reading your 1 year review. I'd like to do the deletes, but my car is still in the shop. 6 weeks and counting, driving a 2016 x5 as my consolation prize.

[335dFan]

Originally Posted by ideloera

Any of you guys who are running their 335ds without deletes add any diesel additive at every fill-up? Curious to see if those adding additives (Redline Diesel Catalyst, Diesel Kleen, etc.) are having less issues.

Have no deletes. Run a JBD @ 100%. Have 57k miles on the odometer. Since under 10k miles I have run Power Service additive every tank (except when I use Propel HPR which is seldom) and Diesel Kleen about every 4 tanks.

No obvious issues, but I expect I have encroaching CBU only because I have noticed a modest drop off in MPG. Having said that, I did get 39.7 mpg recently coming back from California to Portland on I-5. Other than that one tank the best I have done for the last 10-15k was 36-37 Mpg instead of the usual 40 mpg on the road.

[floydarogers]

Originally Posted by kydiesel35

How many (09-11) 335d are currently in the USA?

Originally Posted by Thecastle

Probably in the 7k-10k range of totally number of 335ds sold. The 2011 year was the best selling year, but figures are hard to come by.

The exact number of 335d sold USA/CA has been mentioned several times. It was contained in a document that BMW wrote to respond to an EPA request (they were exploring HPFP failures in VW TDI). The number is slightly above 10K, you can probably find it if you search. Number might also be mentioned in bimmerfest forum.