[Greyhurst]

So I just bought my 335i 2007 on saturday and I LOVE IT!
But i'm expierancing some technical difficulties occasionaly, it's still under warranty thankfully so i'm not too worried but just out of curiosity have come here for information.
My faults are:
Wastegate rattle, seems pretty common.
Half yellow engine light on WOT occasionally not all the time
Creaking while turning steering wheel stationary only
I took it to kwik fit and got the following codes:
2f6c - Previous owner did golf tee mod so not worried
30ff - Low boost pressure main problem
3100 - Turbo Fault
I assume its a wastegate problem mainly so will that be a new actuator new rods or a new turbo altogether?
Any input would be greatly appreciated

[cybermgm23]

Originally Posted by Greyhurst

So I just bought my 335i 2007 on saturday and I LOVE IT!
But i'm expierancing some technical difficulties occasionaly, it's still under warranty thankfully so i'm not too worried but just out of curiosity have come here for information.
My faults are:
Wastegate rattle, seems pretty common.
Half yellow engine light on WOT occasionally not all the time
Creaking while turning steering wheel stationary only
I took it to kwik fit and got the following codes:
2f6c - Previous owner did golf tee mod so not worried
30ff - Low boost pressure main problem
3100 - Turbo Fault
I assume its a wastegate problem mainly so will that be a new actuator new rods or a new turbo altogether?
Any input would be greatly appreciated

If it's under warranty like you say, take it to the dealer and they'll put two new turbos in.

[Bamaben]

You will get wastegate actuators only as that's what's causing the rattle but none of the turbo codes. I've been through all this with my 07 335i. The low boost could be a hose came off due to stretching which they now use braided hoses so they won't stretch. Also could be turbo cannister leaking.

[Greyhurst]

Could it not be loose wastegate leaving it wide open and meaning it can't build the pressure?

[the dope steez]

I'd flush your PS fluid, should help the creaking

[Cory S]

Gotta love the 2007's.....

[Underground6t9]

07=Problem child

[thecooltype]

dealer won't replace wastegate unless the turbo goes. I brought mine in for waste gate rattle last year and was told it was normal smh. turbo went last month and they replaced it all

[Miller335]

Originally Posted by Underground6t9

07=Problem child

I'll let mine know.
Going on almost 3 years of ownership now no issues.

[Dark_Knight_335]

Originally Posted by Miller335

I'll let mine know.
Going on almost 3 years of ownership now no issues.

Laughing at the "I'll let mine know" part, but you probably knew that brother.

[Kevinl]

My 07 has been far more reliable than my wife's pos N55 x5

[MR92_]

No problems here with an 07..

[mweisdorfer]

Originally Posted by Greyhurst

So I just bought my 335i 2007 on saturday and I LOVE IT!
But i'm expierancing some technical difficulties occasionaly, it's still under warranty thankfully so i'm not too worried but just out of curiosity have come here for information.
My faults are:
Wastegate rattle, seems pretty common.
Half yellow engine light on WOT occasionally not all the time
Creaking while turning steering wheel stationary only
I took it to kwik fit and got the following codes:
2f6c - Previous owner did golf tee mod so not worried
30ff - Low boost pressure main problem
3100 - Turbo Fault
I assume its a wastegate problem mainly so will that be a new actuator new rods or a new turbo altogether?
Any input would be greatly appreciated

1/2 engine light during WOT could be the HPFP or Vanos solenoids. Could also be a dirty MAF. Bad turbo's could also cause that.

Waste gate - the dealer will turn the waste gate screw 1/2 a turn or so to try and solve the problem. They will then update the ECU. If those two things don't solve the wastegate rattle, then they will replace the turbo's. Parts alone are 2k let alone the labor. Probably talking $4500 to $5000. To replace the turbos.

Long term, I am not sure that will solve the wastegate rattle. I don't know if BMW has updated their turbos for the N54 or not.

There is a guy that you can send your turbos to and he will refurbish them for under $1000.00, or you can do the work yourself for a lot less than that.

The wastegate problem won't come back.

http://turbolabofamerica.com/bmw-135...le-repair-fix/

[MiniXP]

Originally Posted by mweisdorfer

1/2 engine light during WOT could be the HPFP or Vanos solenoids. Could also be a dirty MAF. Bad turbo's could also cause that.

Waste gate - the dealer will turn the waste gate screw 1/2 a turn or so to try and solve the problem. They will then update the ECU. If those two things don't solve the wastegate rattle, then they will replace the turbo's. Parts alone are 2k let alone the labor. Probably talking $4500 to $5000. To replace the turbos.

Long term, I am not sure that will solve the wastegate rattle. I don't know if BMW has updated their turbos for the N54 or not.

There is a guy that you can send your turbos to and he will refurbish them for under $1000.00, or you can do the work yourself for a lot less than that.

The wastegate problem won't come back.

http://turbolabofamerica.com/bmw-135...le-repair-fix/

There have been at least 3 different part number for the N54 turbos. When I bought mine and typed in the part number of my old ones, I had to click through 3 updated numbers to get to the most current one they sell. This was 2 years ago though. Hopefully they have fixed the rattle issue. Going on 25k with the new turbos and I haven't had any rattle yet.

[Greyhurst]

Cheers for all the advice guys it's going into the workshop this thursday and I will put what they do and if it fixes it

[mweisdorfer]

Originally Posted by MiniXP

There have been at least 3 different part number for the N54 turbos. When I bought mine and typed in the part number of my old ones, I had to click through 3 updated numbers to get to the most current one they sell. This was 2 years ago though. Hopefully they have fixed the rattle issue. Going on 25k with the new turbos and I haven't had any rattle yet.

Your turbos will probably take 75k or so to get another waste-gate rattle, if BMW has not updated the waste gate flap.

[Dargoroth]

I think that you should just replace the turbos for like 600 bucks. I have the same problem as you ( as well as many 335i owners) and I already bought used turbos on ebay from a 60k mile car. Its cheaper than getting the dealer to fix your turbos.

[thakid22]

Originally Posted by the dope steez

I'd flush your PS fluid, should help the creaking

No!!! Don't touch it. He has warranty. Let the dealership address it. Creaking steering usually get new intermediate steering shafts, lower shafts, racks, or control arms if it is the ball joints. If it is the bushings, the control arms aren't covered under CPO.

AFTER, the dealer repairs, then flush the steering / replace the filter if they didn't do so during the repairs. Let them replace all of those expensive parts under warranty. In Bimmerland, these parts sometimes wear unusually quickly. Let BMW refresh that front end on their dime. The techs are familiar with the sounds and know what parts typically cause it.

Flushing the fluid now may reduce or quiet the sound, but what about when it comes back after warranty????? I never decline a new part under warranty with these cars (even when I am reasonably sure it is not the issue), because there are so many parts that have a higher than usual failure rate. If they want to replace it, I allow them. BMW front suspension/steering as a whole wears quicker than most. Sometimes you don't recognize how much so, until the new parts are installed.

I wonder how many miles OP has on his car?

[Gizm0]

Originally Posted by Bamaben

You will get wastegate actuators only as that's what's causing the rattle but none of the turbo codes. I've been through all this with my 07 335i. The low boost could be a hose came off due to stretching which they now use braided hoses so they won't stretch. Also could be turbo cannister leaking.

The actuators are not what's causing the rattle... The bearing on the wastegate is the issue. It starts developing some wear after so many years and the wastegate doesn't close completely anymore under vacuum... Adjusting the wastegate actuator is just a temporary fix

[whyzee125]

Originally Posted by Bamaben

You will get wastegate actuators only as that's what's causing the rattle but none of the turbo codes. I've been through all this with my 07 335i. The low boost could be a hose came off due to stretching which they now use braided hoses so they won't stretch. Also could be turbo cannister leaking.

Not necessarily true. Many get full turbo replacements, and that's actually what is warrantied by the rattle.