Q: idling rough warning lights

asked by on

My Z4 is running rough while idling and the warning lights are on. I changed the car battery and the problems still exist. I put a battery charger on the battery located in the trunk. My car would not start, so I bought a new battery. Now the car idles rough, the warning lights for the brake, Engine Management Light and engine light are on. Do you have any ideas as to what the problem is?

Hello. I think the car is running rough because the Check Engine Light is on. It is possible that the alternator is not working properly causing low voltage, which would make the car difficult to run properly. I would suggest that you have a certified technician, like one from YourMechanic, complete an inspection to diagnose why your Check Engine Light is on. This technician should also inspect the battery and charging system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. idling rough warning lights

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: Van idles high - 1993 Ford E-150 Econoline Club Wagon

You need to disconnect the throttle cable from the throttle body to see if the idle comes down. If it does, you may have a misadjusted transmission downshift cable which is holding the throttle body open. If it still idles...

Q: Why is my minivan going into "limp mode"?

Hi there. There are many things in your vehicle that will contribute to a limp mode. The engine is putting out too much or too little emissions, the transmission is not working properly, or the brake system could have failed....

Q: car wont start after pumping gas.

Sometimes the fuel vapor system control valve leaks and causes fumes from the gas tank when filling it. This can get pushed into the engine causing an excessively rich condition (too much fuel) inside the engine. Now when you...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.