[Jet335XI]

Purchased my car about 9 months ago. Turns out it has the JB4 tune and potentially exhaust work (haven't had this confirmed, stock mufflers but it definitely grumbles more than a stock 335).

Anyway, a week ago my car wasn't boosting at all. Turns out there were cracks in the vacuum line. With this issue remedied, the dealership informed me that "the turbos were a little noisy and may fail in the future".

I also have some wastegate rattle, not sure if this is what they meant by noisy turbos. If the car is idling and I rev it to 3,000RPM and let off, once it dips back down I hear the rattle.

The dealership informed me that only the HPFP is covered under recall order for my car (and I can't have this done until it breaks? wtf?). Wastegate rattle is a "service bulletin" and will not be covered under a recall. The guy seemed very aggressive and raised his voice a bit (kind of uncalled for, felt like he was trying to express his authority or something).

From my understanding...wastegates were covered under recall and meant to be replaced as well. Is this false? If I'm correct, can anyone help me find some official documentation that I can print off and show them?

[Sgop335]

How many miles on your 335?

[Jet335XI]

53,000 miles.

[Sgop335]

I think turbos can be replaced till 8 yrs / 82k if dealership declares that to be the case.

Has your hpfp been replaced by prev owner?

[Fundguy1]

Turbos and hpfp aren't recalls. They're extended warranty. That means when they fail they will replace. Recall means they just replace fail or not. I believe our injectors were recalled. Your hpfp should have blown by now if you have the old style. The turbos are pot luck.

[Julian2485]

Originally Posted by Fundguy1

Turbos and hpfp aren't recalls. They're extended warranty. That means when they fail they will replace. Recall means they just replace fail or not. I believe our injectors were recalled. Your hpfp should have blown by now if you have the old style. The turbos are pot luck.

I have been trying to find out if the injectors are recalled but haven't gotten any clear answers I have a 2009 e90 335xi. Where did you hear that injectors have been recalled ?

[335NJ]

Find a different dealer, or atleast a better SA. Usually the ones who act like dicks are just that, dicks.

[Fundguy1]

Originally Posted by Julian2485

I have been trying to find out if the injectors are recalled but haven't gotten any clear answers I have a 2009 e90 335xi. Where did you hear that injectors have been recalled ?

Couple years ago I went into the dealer and he said they would be replaced under recall. Mines an '08. Idk if it covered '09.

I'd call other dealers or do a search in recall notices for your car.

Oh and welcome to the board JET335XI

[atinybug]

Originally Posted by Jet335XI

Purchased my car about 9 months ago. Turns out it has the JB4 tune and potentially exhaust work (haven't had this confirmed, stock mufflers but it definitely grumbles more than a stock 335).

JB4 can open a little flap in the exhaust pipe at low rpms (it normally doesn't open until high rpm), that's probably why you think your car grumbles more than stock.

[Jet335XI]

Thanks for your input and warm welcome, everyone.

Originally Posted by Fundguy1

Turbos and hpfp aren't recalls. They're extended warranty. That means when they fail they will replace. Recall means they just replace fail or not. I believe our injectors were recalled. Your hpfp should have blown by now if you have the old style. The turbos are pot luck.

I was informed that the only thing covered under extended warranty is the HPFP. They made absolutely no mention of the turbos, and when I asked them about it, the dealership informed me once more that turbos were not listed, but the wastegate was posted as an "SIB" (service bulletin).

[atinybug]

How many miles? Technically it's the wastegate that's covered in the extended warranty, not the turbos, and those are only until 8yr/82k miles. But, their method of fixing the wastegate is to replace the turbos, so go figure lol.

[Fundguy1]

Originally Posted by Jet335XI

Thanks for your input and warm welcome, everyone.



I was informed that the only thing covered under extended warranty is the HPFP. They made absolutely no mention of the turbos, and when I asked them about it, the dealership informed me once more that turbos were not listed, but the wastegate was posted as an "SIB" (service bulletin).

The waste gates and turbos are a single unit. If the waste gates go, which is the part that fails, the entire unit which includes both turbos is replaced. Other parts that are similar for example are the HID control modules. The HID ballast is part of the control module which also has the electronics to turn on and move the adaptive headlights. So if a ballast goes, you need to replace the unit. $400. Another is rear wheel bearings. It's a whole unit that includes the wheel speed sensors among other stuff.$1,000 For this unit. Etc.

The problem with the waste gates is that over time they loosen up and don't close all the way. Then they will rattle and you loose boost pressure. They built in an ability to adjust them to tighten them up but the original design didn't provide enough extra adjustment on the adjusting screw so sometimes they adjust them to the full amount but it's not enough. That's why they replace them with new units that have ]lent of adjustment capability. That's also why if they are replaced you don't need to worry and why if you get aftermarket units you don't either as they address this issue.

Hope that explains the situation. A good tech rep should have calmly explained this instead of terse told you No. When you see bad turbos, it's usually the wastegates which are part of the unit. It's really rare to see the actual turbo die on these cars.

Oh and the reason they do the modules is threefold. One it's easier to train the techs to replace a small number of chunks than to teach them how to replace each nut and screw and properly insert turbos, etc. Two, the computer will tell them there's a problem with this chunk, so they replace the chunk, and 3 they can sell more expensive replacement parts Because the markup is on a large chunk and not a tiny ballast.

[Jet335XI]

Wonderful, thanks for your explanation. I have a much clearer picture of what I'm dealing with.

It's kind of scary, though. With my luck I feel that the wastegates will give out on me right after the extended warranty expires. They've already begun to (very slightly) rattle and the build date of the vehicle is November of 2007.

Ridiculous that they acknowledged the sound yet they aren't fixing it because it hasn't resulted in a loss of boost yet.

[Fundguy1]

Glad I could help. Good luck with them. Hope that cleared it up. Try to find a good dealer with a service rep who will take the time to explain this stuff.