1100 backfire my rt was running perfectly it went for service at bmw agent since then it idles rough and backfires on overunhave they messed with my engine management progam

SOURCE: My bmw 323i backfired after cleaning the throttle

sounds like you an idle arecontrol valve to me, wich by the way is the only thing that really needs cleaned, make sure the air boot is not torn on the smaller part going to that vlv it tears at the bend you will need a mirror to see if in the car still, also check the plug on the same vlv make sure it is plugged in all the way, also also check the connector on the throttle itself the white arrows must be aligned and touching let me know what you find

SOURCE: 1998 bmw 528i severe misfire

If you've never replaced the timing belt or chain,That would be my first thing I'd check is the Timing belt or chai, just aline the timing marks on crankshaft and then look at the position on the distributor to see if it's pointed in the #1 firing position .

Mark Lewis

• 105 Answers
• Posted on Jun 05, 2009

SOURCE: HOW COULD I READ CHECK ENGINE CODE ON A 1986 BMW 325E???

You can't use a tool to pull codes from an '87 BMW 325(e). You have the 2.7 liter and your DME, or computer is a Motronic. If you had a 325i, then a tool could read the codes because the computer was upgraded that year to a Motronic 1.1 system with a round plug in under the screw cap on the driver's side under the hood. The only tool you can buy is the one for resetting the service interval light and resetting the oil change light. To answer your question about going about finding your driveability problem would be to get a BMW Bentley Manual. This manual shows you how to use a standard voltmeter to check everything from your computer plug in. Your computer is located above the glovebox.

Good Luck,

~Stillin~

SOURCE: Hi I have 2000 BMW 320i. Lumpy idle when cold and oil light for

Your oil is a little low, and the timing may be off a bit but if it smooths out after warm it is probably ljust
low oil.

SOURCE: Hello, My 1999 BMW RT 1100

depends. if anything that loose is not so good.but some brake are design to have something loose.u can check your brake sometime there is a bolt holding your brake calliper ,cover /wrapped with a small rubber tube or washer.because some brakes there is a gap and allow your brake calliper to move a little when it brake for full brake performance.