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Repair Database Category: Volvo S80

Volvo S80 opinions, advice, repairs, maintenance, tutorials and more

June 14, 2014

Turbo S80 TCV & Vacuum Line Routing

The pressure from the outlet of the turbo presses on the wastegate diaphragm to keep it closed. When the ECU decides there is enough boost, it stops allowing the air from the turbo outlet from going to the wastegate actuator and allows it to go to the compressor inlet tube. The system is a pulse width modulated system meaning it is never “always on”, but instead cycled on for longer periods of time to increase boost, and shorter to decrease boost. When the TCV is off, air from the compressor is dumped to the compressor inlet, and the spring pressure in the wastegate is what regulates compressor outlet pressure.

Turbo S80 TCV & Vacuum Line Routing
June 13, 2014

S80 Transmission Rebuild In-Car DIY

I have a 2000 S80 T-6 with the same P0756 troubles everyone usually runs into, namely no shift into 3rd or 4th. Swapping the whole solenoid set had no effect, so it was time for a complete unit swap or a rebuild. As this is my project car, and I’d done a few VW transmissions before, I decided to do it myself. The idea came from watching this series of videos on YouTube, it’s possible to fix the problem our cars have without actually removing the transmission, so this rebuild just replaces all the clutches and worn bushings and the 4th gear shaft, leaving the torque converter and differential alone.

S80 Transmission Rebuild In-Car DIY
April 7, 2014

Who Repairs 2004-era S80 ABS Modules?

I have read the great 21 pages on this repair in another forum on this site. I am inspired to attempt the same repair on my 2004. Most of the posts, however, seem to pertain to slightly older model cars than mine.

Will an abs module repair work on a 2004 S80?

Who Repairs 2004-era S80 ABS Modules?
February 13, 2014

S80 Heater Core DIY

MVS Forums users yuckuJackD (photos, primarily) and gsnyder (text) show us how to replace the heater core on a Volvo S80.

S80 Heater Core DIY
November 5, 2013

1999 Volvo S80 – Drove Through Water

I am ashamed to admit this but I drove my wonderful 1999 Volvo S80-V6-Turbo thru a flooded road. The water wasn’t that high but I got nervous and stepped on the gas and sucked water into the intake. It made it thru water, then stalled, I tried to start and wont turn over. Towed it home and a friend tore engine down and there was water in 4 of 6 plugs and large amount of water in oil pan.

1999 Volvo S80 – Drove Through Water