Skip the auto shop - Our mechanics make house calls

Q: BMW 35I check engine light on after using siphon

asked by on

BMW 35I 2008. Check engine light turns on after using siphon. What can I do?

A: I wouldn’t use a siphon again. I’ve got a v...

I wouldn’t use a siphon again. I’ve got a video about it and then I said don’t use it, because I’ve seen it cause problems. What you want to do is wait when you are almost out of gas, fill the tank up with premium gas. Then just have a good mechanic, like one from YourMechanic, plug the machine and reset until the codes are off. Often the codes won’t come off, because when you get back to your normal fuel it will stop. BMWs are so complex and there are so many sensors on them. Putting that cleaner on them will often make them run strange and the computer will catch that and that will trip the code. If you want to have the vehicle diagnosed properly, a qualified technician can inspect your Check Engine Light in person to let you know exactly what should be repaired.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Hello, I replaced my window regulator on my 1995 bmw 318i and for some reason the regulator slips out from the track.

Hi there. Check the wheels on the regulator base and see if it's broken or cracked. If the wheels are good in the track, then check the cable inside the regulator and make sure that it is tight. A loose...

Q: my car is getting higher temperature after 1km or more and there is no licking anywhere and i have replaced a new lid for radiator

Hello. Thank you for writing in. Lets start by discussing the check engine and ABS lights. These are very general warning lights that can stand for a large number of issues detected by the computer. Luckily, they are doing exactly...

Q: I have a Code P0601 on the PCM. I replaced the PCM, and now I have a code P0118, code P0123, and code P0193.

Hi there, the short answer to your question is no . A PCM with a P0601 (which is a memory module error in the PCM) cannot reliably retrieve codes for the codes you list (P0118 - coolant temp sensor, P0123...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...