2004 Volvo C70 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Volvo C70
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2004 Volvo C70 ProblemsConvertible Tops May Have Problems With Micro-Switches/Potentiometers
The convertible top may have problems with the micro-switches and potentiometers that help control the raising and lowering of the top.
Several complaints have been reported regarding Volvo C70 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 fix this issue so if available, the software should be updated before any repairs are made.
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
Door window regulator failures have been reported. These vehicles have a very complex door window mechanism that can be very difficult to adjust properly after installing a new window regulator. This can lead to air leaks, wind noise, and a door that doesn't open or close properly. This is a good time to find an experienced Volvo mechanic!
2004 Volvo C70 QuestionsTried to glue convertible window back in. Looks awful. Is there a rubber seal our take I can use to line around window to hide it? (1 answer)
in the boot where the top stores, there are 4 drain holes, the rear ones are easy to see and clear but cannot get to the front ones which are clogged, because they are under the mechanism that raises/lowers the top... how do you get at those to clear them??
When the last guy checked the battery, he burned his thumb. He said the battery terminal should not be that hot. He recommended cleaning the terminals and posts. I also found an article on the web that indicated there was a problem with the positive crimp on some Volvo models, which would caus...