Make sure it's Bosch sparkplug.
Check the spark plug cables and spark plugs themselves. I had the same problem about 3 months ago, and it was a bad plug cable and a bad plug as well.
There's no Volvo 850 2000. What you likely saw was a S70.
The Volvo 850 has two horns in front of the radiator, lift the hood and their they are.
There's no 2.0L. Volvo 850 engine. Only 2.3L. & 2.4L. ...
The diesel turbo can only fit on a Volvo 850 with a little fabrication.
If you use NGK plugs BPR7ES or BPR7EIX the gap is 0.032. Safe riding!
You can find an air conditioner for a 1994 Volvo 850 on Ebay. The Volvo 850 was designed by Jan Wilsgaard. There have been 1,360,522 units made between the years 1991 and 1997.
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95-97 are very interchangeable. Pretty much all body parts should be. Engine parts depend on which models your are changing between. Your question is too broad, try narrowing it down. What parts did you have in mind?
If your 850 Volvo starts but then cuts out, it could be due to several issues. Common causes include a failing fuel pump, a clogged fuel filter, or problems with the ignition system, such as faulty spark plugs or ignition coils. Additionally, a malfunctioning sensor, such as the mass airflow sensor or crankshaft position sensor, could disrupt the engine's operation. It's advisable to run a diagnostic check to pinpoint the exact issue.
To remove a broken spark plug from a 1993 Volvo 850, first, ensure the engine is cool and disconnect the battery. Use a spark plug extraction tool or a left-handed drill bit to carefully drill into the center of the broken plug. Once you have created a hole, you can use an easy-out tool to grip and twist out the broken piece. If the plug is severely damaged, you may need to use a tap to clean the threads before installing a new spark plug.
http://www.swedishautoparts.com/850/volvo-850-electrical-parts.html Try this website for a pdf. Hope it helps, Troy