What are common problems with the Volvo s70?

Answer 1

I'd check for heater matrix, it bounds to get leaky quite often. Check for dampness underneath front passenger feet (UK version) - if it's there, your matrix has to be replaced. It's quite easy to do it yourself, but very time consuming. This might be the cause of engine overheating as well.

A/C compressor (check if AC is working). Sometimes it just needs gas reloading, but to be sure, check with a garage.

If you get a mayonaise in oil dip stick - don't worry. It not necessary means blown head gasket - all s/v/c70 engines need to get a proper beating to blow HG.

Suspension top mounts - noises on speedbumps, clanging and bumping, dead steering - replacing these will cost you apx £200, maybe less to get it replaced. Continue driving without replaced for a longer time and you have to regenerate steering rack.

I'd say these are the main things that are to be looked for...