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Robert, Technician
Category: Volvo
Satisfied Customers: 13375
Experience:  6 years experience with car repair.
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Sometimes the ABS lights and airbag comes on and eventually

Customer Question

sometimes the ABS lights and airbag comes on and eventually turns off the AC and stutters
JA: Is it just the ABS light? Or is the brake system warning light on, too?
Customer: just the ABS
JA: What is the model/year of your Volvo?
Customer: 2003 S40
JA: Are you fixing your S40 yourself? What have you tried so far?
Customer: i havent tried anything yet because i dont know what the problem is
JA: Anything else you want the mechanic to know before I connect you?
Customer: when i turn it off the car wont turn on anymore after a few hours
Submitted: 11 months ago.
Category: Volvo
Expert:  Robert replied 11 months ago.

Hi my name is Robert.....

I would have the battery load tested, most auto parts stores will check them for free, check your cables as well make sure they are clean and tight. The ABS system is very sensitive to low voltage and it might be the first sign if you are getting ready to have a battery or alternator going out. Make sure the ground on the battery is clean and tight to the frame as well. IF the car is also not starting then it could be a voltage issue so all these could be tied together and I would start with having the battery tested.... IF you have more questions or concerns please feel free to contact me... Robert

Also if you have a meter at 1500 rpms you should have about 14 volts DC on the back of the alternator, if not then the alternator or belt might be the issue.... Robert

Expert:  Robert replied 11 months ago.

Was just checking in to see if my answer helped, if you have more questions or concerns please feel free to contact me.. Robert