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Volvo S40 Questions

Get answers to questions about your Volvo S40 at RepairPal. Find solutions, diagnose problems and get back on the road.

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433
questions

the thermostat seems to work fine i have lots of heat ,i didn't know a LOW temp coolant would trigger a code could this be a sensor ?? any tips ,please and thank you

Timing belt cameoffwhilr driving

Lost power pullled over and towed

windows, or cental locking.

and reset lite

There are no OBD codes as I have fixed and gotten rid of all the codes that came up. I replaced the timing belt and accessories and timing is dead on, starter is good, alternator is good, battery is good, fuel system is good, replaced many sensors and cleared many codes. Cleared: P0017, P0102, P0122, P0302, P0304, P0314, P0335, P0341, P0351, P0365, P0366, and a few more I had on another list I can't find. The only one I haven't cleared is P0650. Help please because this is our only car and it has been down for 3 weeks now and my wife is chronically ill and I have to be able to take her to her doctor's appointments and for her tests and we have been having to reschedule so I can try to fix this car. Thanks!

My brother brought me his s40 and said it has no reverse and wanted me to check it out. I opened up the trans and it smelled like gear oil so I asked him about it and he said he put gear oil in the front differential. WTF! I explained to him how this transaxle works and he said woops. I rebuilt the valve body and replaced two solenoids that were bad, flushed it out and replaced the fluid. The car was now trying to go into reverse, so I put it through the gears and kept checking the fluid until it was full and tried again. I put it in drive and it worked fine, I put it in reverse and the rpms dropped but would not move, except for a feeble attempt. I put it in park checked the fluid, put in in reverse and it went forward, not backward. It now has no drive, only goes forward in reverse. How do I trouble shoot the the computer and the gear selector to find the problem. The problem isn't the cable.

Happened once

it is S40, 1900 cc. regular gear.

Only starts after car has been running for over 1/2 hour or so. May start sooner on a hot day and/or in constant traffic.

Does not appear to come from the engine.

Can hear it best in rear seating area, and sounds like it's coming from under the console back there.

Can hear from outside, sounds like it's coming from under the car.

Repair was made to gear selector problem and drove the car a short distance and it went dead. It is showing a P0603 code - but I've been told this could be a failed starter control module?? HELP

the terminals on my battery were cleaned, and now nothing in the car works no lights and wont turn on. however there is a clicking sound under the passenger side dash and a little light barley flashing???? help

Is there a special tool needed to replace the timing belt

I am having water pooling in the drivers side rear passenger floor board
And the front passenger floor board

I see from the posts that there is a tube from the sunroof
It might be clogged

How can I find this tube and possibly unclog it

I am a amateur at car repair

If this isn't the problem is their something easy that I
Can check to help solve this problem

Thank you for the help

Trying to find a replacement part

While driving, happens more and more frequent (4 or 5 times today), if I shut of a/c for a few mins and turn back on it works like normal for a little while

Car is stuck in park gear.

cools for a little while then shuts off or blows hot air.you can cut off a few minutes and then turn back on and its ccol again.

brake sensor

I saw previous answer referencing the blower box. How do i access it. I have no idea where it or the cabin filter is located.

I can see where coolant is leaking from two hoses and took it in to be serviced. The est. came back at just over $900 to repair the Gasket-Thermostat, hoses, and coolant system service w/ extended life. Is this all necessary. I guess what I'm asking, does the gasket/thermostat need to be replaced if the collant is leaking from the hoses?