On several occasions the car would not start. When the key was turned nothing would happen. Car was towed 3 times. First time they stated it was the starter motor. Second time new battery. Third time it was the electronic control module that needed replacememt. A common problem as I under. I believe that all 3 times it was the ECM. Water leakage can get into the unit via a poorly designed rubber grommet (seal). Only the Volvo dealerhip c...
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Newest reported 2004 Volvo XC90 problems
There have been problems with the climate control system not working at times. Volvo has made a Software upgrade for the AC control module is available that can correct certain climate control system faults.
Problems with the audio system have been reported. There are software upgrades available that will address certain issues. Problems unrelated to software issues will require standard repair procedures.
Oil leaks from the all-wheel drive differential housing have been reported.
Premature automatic transmission failure is common. Diagnoses of the fault will be necessary to determine if repair or replacement is the proper repair.
Many complaints have been reported regarding Volvo XC90 transmission shifting issues. Long shift times between gear shifts, hard shifting, hard downshifting and a loss of transmission operation all together to name a few.
If the issue is minor, a transmission software update may address this issue so if available, the software should be updated before any repairs are made. After a software update or repair, the shift adaptation needs to be reset. A good quality Volvo repair shop will know how to perform this task.
There are several technical service bulletins (TSB's) available from Volvo that address these shifting issues and they should be consulted by the repair shop during the automatic transmission diagnostic process.
Regular servicing of the transmission fluid can help with preventing transmission failure, but not in all cases. Follow the suggested fluid replacement interval recommended by Volvo. You will find this in your owners manual, or find it here: http://bit.ly/Volvo_Owners_Manuals