@scot850 We have 850 diesels in EU along with s,v70 from '97-'00 P80. It is 2.5 TDI R5...from Audi...but modified a bit by Volvo. Also...EU market have 2.0 T5 & 2.0 T5R for Italian market....something because of high taxes for engines larger than 2.0L. @Vladimir24 Welcome to MVS! Everything is p...

What was the code which your "volvo guy" cleared?
Don't drive it like this... you will fry plates in the transmission.

https://www.fixya.com/cars/t26999137-2000_volvo_s70_dtc_p1631 It's TCM request for ECU to turn on the CEL. Your car have CAN network and these 2 modules are not communicating to each other. Along with no start situation you had before because of broken wire somewhere in the loom....there might be ot...

Volvo manual says that when you do mostly city driving(stop & go),short distances under 10-15 miles and when engine,most of the time in city driving,is idling....oil change interval is cut to 6 months instead of 12 months. When you mostly drive short distances in city...this is what you could ex...

scot850 wrote: ↑14 Apr 2022, 16:53 Does IAT = Incoming Air Temperature sensor?

Thanks,

Neil.

Yes.
Intake Air Temperature sensor.

As far as i know....ecu on 10v cars is not OBDII.
They produce flash codes and you will need to make your own flash code reader.

There is a how to on www.volvoforums.org.uk

I have trouble to find GKN/lobro cv boots too. After some research...i found that Spidan is also a GKN group. https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.gknautomotive.com/globalassets/downloads/specialist-services---workshop-portal-downloads/tpe-boots-spidan/tpe-boo...

10w40 would be more appropriate for these n/a high mileage cars...5w40 too.

5 or 10w30 is too thin...it should only be used in extreme cold climate.

But...again...it's your car and you decide what viscosity oil you will use in your car.

Gap is critical for turbo engines...it must be 0.026-0.028. Spark plugs...Volvo (set of 5) for turbo engines,NGK iridium properly gapped or cheap copper Bosch or NGK properly gapped..nothing in between and nothing fancy...since it will not run properly with anything else. Cap & rotor MUST be Bos...