Skip the auto shop - Our mechanics make house calls

Q: check engine light on 2002 325i bmw

asked by on

My check light engine is on I need to smog it but its reading out 3 codes I wanna know wats the main pary I need if it gives me, idle air control valve

My car has 199745 miles.
My car's transmission is unknown to me.

A: Hi there: Anytime an error is detected it ...

Hi there:

Anytime an error is detected it stores a trouble code in the ECU which illuminates the check engine light on your BMW. In order to determine what’s causing issues, or causing the check engine light to illuminate, you’ll need to contact a professional mobile mechanic to complete a check engine light is on inspection. Once they download all codes, they’ll have a good indication as to what’s damaged so they can make the right repairs.

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: After shop replaced my starter on 330ci bmw, my car is in limp mode

Hi. More than likely there is a fuse blown causing the car to be in limp mode. This could have happened when they reconnected the battery or when things were removed to get to the starter. The shop will always...

Q: Does a stuck thermostat set off a Check Engine Light?

Hey there. A stuck open thermostat can cause the engine to take too long to warm up, not reach proper operating temperature at all, possibly run rich, and MAYBE set that fault code. The engine electronics are programmed to...

Q: Why do the battery light and reduced engine power light come on at the same time?

This is likely due to a weak battery, a failing alternator or potentially a bad grounding connection. When the alternator is not working properly, it will fail to maintain an adequate charge on the battery which may cause other components...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.