SOURCE: S40 Warning Lights
Faults can happen from day one, on. That is why there is a warning system.
If the warning light is on, you must access the computer system to access which fault code is present. Many different companies manufacture tools to do this from an inexpensive generic one from Launch Tech of China to the original factory unit made for Volvo by Balco. Depending on the fault code, the most common one that I see is caused by the fuel cap either installed incorrectly or not fully tightenned. Check your fuel cap and if it is not installed correctly or not fully tightenned, please re-install. If the fuel cap was the problem, the warning light will go off by itself in a few days.
SOURCE: Car won't start
Your immobilizer is enabled. Try locking/unlocking the doors with the remote five (5) times, this should remedy.
SOURCE: 2001 Volvo S40 sensors?
Maybe you have iron debris stuck to the magnetic ABS sensor. behind the hub. Remove the sensor from behind the hub and clean it or remove the whole hub. To remove the hub you need to remove the calliper and rotor, knok off the centre dust cap and undo the 30mm nut and then the hub will slide off and you will see the sensor. When re fitting the hub, toque the nut to 120NM then 30degs more ( that is from Volvo Vadas official instructions).
I've just replaced the hub last night on my 2001 V40.
SOURCE: 2005 Volvo S40 Side Mirror Defroster?
applgirl2, did you find a fix? I'm having the exact same problem. Driver side works, passenger suddenly doesn't.
Thanks
SOURCE: my volvo s40 fails to start i went out in it this
try jumping it first. If it will jump, you probably have a battery or alternator issue. Both can be tested to determine which is bad. If it does not jump, the troubleshooting steps are different.
Please see my tip at http://www.fixya.com/cars/r6222268-engine_doesnt_crank_turn_over . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
Car not starting or turning over indicates towards multiple possibilities.
It can be issue with battery or weak battery. But if battery checks out ok, then
it can be starter issue or faulty alternator or problem with low fuel pressure
or no spark at spark plugs due to dirty spark plugs or faulty
ignition coil or injectors getting cracked or dirty and needs to be cleaned.
To confirm the problem, the basic troubleshooting is required.
Click this link below and follow the troubleshooting:------
http://technoanswers.blogspot.in/2012/02/car-starting-issues.html
---------
This will help.
Thanks.
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