Bad lag w/ Turbo - carbon buildup in intake valves?
06-08-2012, 07:24 AM
#11
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My Ride: 2008 535i:
(8/07 Build) Metallic Bronze, Beige NASCA Leather, Ventilated Seats, Sport Pkg, Cold Wxr Pkg, Logic-7 Sound, HUD, Night Vision, PDC, Split Rear Seats, NAV, Premium Pkg, Comfort Access, HD Radio, Sport Auto Trans
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The dealer actually does offer a FI cleaning service for about $200. I'm sure an indy could do it for less.
06-08-2012, 08:47 AM
#12
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I got my 2008 535i intakes cleaned under goodwill @ 72k miles last year. = $0 No extended warranty, but I do have extended maintenance, but I don't think that would be covered.
I guess it depends on how squeaky of a wheel you are, and how good of a relationship you have with the dealership.
06-08-2012, 06:08 PM
#13
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My Ride: 2008 BMW 535i manual Monaco Blue-Sport Package-Cold Weather Package-Premium Package-Heated Rear Seats-PDC-Ipod Connectivity
Model Year: 2008
Mine was laggy and started to stumble (felt like a misfire). I had reported it prior to the warranty being up but they didn't find anything at the time. Took it back in just after the warranty (54k) and at first they wanted to charge for the "inspection and cleaning", but after I said no, the dealer spoke to one of the reps and they covered the intake cleaning for free. Apparently the valves were pretty badly coated.
Runs much better now
Runs much better now
06-09-2012, 04:16 PM
#14
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My Ride: Alpine E60, '09 535i-Premium, Sport and Comfort Access PackageMods: Lux H8 V3 Angel Eyes, Weisslicht LED license plate lights, Interior LED lights, RPI Scoop, Matte Black Grills, Smoked LED side markers & side reflectors, 35% tint all around, and a 3
Mine was laggy and started to stumble (felt like a misfire). I had reported it prior to the warranty being up but they didn't find anything at the time. Took it back in just after the warranty (54k) and at first they wanted to charge for the "inspection and cleaning", but after I said no, the dealer spoke to one of the reps and they covered the intake cleaning for free. Apparently the valves were pretty badly coated.
Runs much better now
Runs much better now
I was just wondering if using a injector cleaner like the Lucas one helps with preventing this issue? I used it in my x5 and lexus gs with great success but I am not sure about our engines.
06-09-2012, 05:36 PM
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My Ride: 2008 535i
Model Year: 2008
06-10-2012, 08:32 AM
#16
Do a Google search in the issues Audi owners are having...its much worse over there.
06-10-2012, 03:33 PM
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My Ride: Alpine E60, '09 535i-Premium, Sport and Comfort Access PackageMods: Lux H8 V3 Angel Eyes, Weisslicht LED license plate lights, Interior LED lights, RPI Scoop, Matte Black Grills, Smoked LED side markers & side reflectors, 35% tint all around, and a 3
Ah, sorry about that I have only had this car for 2 months and I was coming from a 02 X5. Now that I have got a understanding of the N54 engine I feel like a dummy for asking that question. 
Definitely a fuel additive would only be pouring money down the drain. It seems that the only thing that has been mentioned as a possible help is to run your engine to redline when accelerating for instance getting up to freeway speed.
Definitely a fuel additive would only be pouring money down the drain. It seems that the only thing that has been mentioned as a possible help is to run your engine to redline when accelerating for instance getting up to freeway speed.
06-10-2012, 04:50 PM
#18
Ah, sorry about that I have only had this car for 2 months and I was coming from a 02 X5. Now that I have got a understanding of the N54 engine I feel like a dummy for asking that question. Definitely a fuel additive would only be pouring money down the drain. It seems that the only thing that has been mentioned as a possible help is to run your engine to redline when accelerating for instance getting up to freeway speed.
Definitely a fuel additive would only be pouring money down the drain. It seems that the only thing that has been mentioned as a possible help is to run your engine to redline when accelerating for instance getting up to freeway speed.
06-10-2012, 05:26 PM
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My Ride: Alpine E60, '09 535i-Premium, Sport and Comfort Access PackageMods: Lux H8 V3 Angel Eyes, Weisslicht LED license plate lights, Interior LED lights, RPI Scoop, Matte Black Grills, Smoked LED side markers & side reflectors, 35% tint all around, and a 3
Outstanding. Well luckily I have a good local indie shop in town. Unless anyone knows if BMW's CPO and/or maintenance warranty covers it? I still have 3 years, 70k miles left of both coverage and it would be great if it was covered.
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