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BMW 5-Series Engine Questions
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Comments
I do think that cold air intake would be stupit.
As for more power, highly-HIGHLY unlikely. The BMW engineers aren't fools; they know how to build an intake system that efficiently feeds air to the engine, regardless of the environment or how firmly planted the drivers' foot is to the floor.
Best regards,
Shipo
I've tested these things many times and the best I can say is there is no gas mileage improvement that can be attributed to them, and as for "power", there might be better throttle response but no better 0-60 times, or again, so slight as to not justify the costs.
If you found a very restrictive air intake system (not a BMW) and a very large engine, you might register 3-4 more HP on a dyno.
My friends Porsche/Audi shop tested these on a dyno and got ZIP; however, in conjunction with well-engineered aftermarket exhaust systems, and changes to fuel-mapping, yeah, the K&N helped out.
Mine: 1995 318ti Club Sport; 2020 C43; 2021 Sahara 4xe 1996 Speed Triple Challenge Cup Replica Wife's: 2015 X1 xDrive28i Son's: 2009 328i; 2018 330i xDrive
Also I like detailed info on the chip, so I know what they are manipulating in order to get the HP gains. Some chips do fuel enrichment, some boost timing, some just extend your automatic transmission shift points (don't need to spend $400 for THAT!).
Mine: 1995 318ti Club Sport; 2020 C43; 2021 Sahara 4xe 1996 Speed Triple Challenge Cup Replica Wife's: 2015 X1 xDrive28i Son's: 2009 328i; 2018 330i xDrive
They claim this will solve the ticking problems. Get the car back next week. Will keep you informed as to whether this solves the problems.
Only time will tell but will keep you all posted if things change.
Check for any vacuum leaks between the air flow meter and the engine. Is the dipstick fully inserted? Oil filler cap tight? Also check the idle control valve. If you don't have one already, I'd strongly suggest buying the Bentley Repair Manual.
Mine: 1995 318ti Club Sport; 2020 C43; 2021 Sahara 4xe 1996 Speed Triple Challenge Cup Replica Wife's: 2015 X1 xDrive28i Son's: 2009 328i; 2018 330i xDrive
Just got a 2007 530i, 24K miles on the clock. Love the vehicle. I am prone to sitting at the beach with a book, listening to the radio, without running the engine.
My vehicle has NAV also. I'm wondering, would this useage have any deleterious effects on the battery life? I have to believe iDrive screen uses some juice (much like a video camera), so I am wondering if I should get out of that habit, though it's pleasurable. I use to drive a 328i, and my battery lasted years doing this.
Any advice would be appreciated, thanks guys.
Gardis - CT
Mine: 1995 318ti Club Sport; 2020 C43; 2021 Sahara 4xe 1996 Speed Triple Challenge Cup Replica Wife's: 2015 X1 xDrive28i Son's: 2009 328i; 2018 330i xDrive
I'm wondering if your wife's car is satisfactorily fixed at this point? I'm concerned that I'm having engine problems on a car with 65k miles on it.
Thank you for your time and insight. I truly appreciate it!
I hope to hear if anyone else has the same problem and was able to fix it.