I have an Old Volvo V70 D5 with 350000kms ~210000miles - works fine but too much smoke on heavy acceleration. How to reduce the smoke. Need to get through a pollution test particulates.

SOURCE: radio code 1998 volvo v70

your going to have to call up your local volvo dealer and give them your vin number and they can look it up for you. You can try using radio-code.com but i wouldnt recomend it. Your best bet is calling your local volvo dealer and they will help you out.

SOURCE: PLEASE HELP volvo 1998 v70 radio code

You need to call a Volvo dealer. They'll likely ask you for a number on a sticker on the radio itself. You can find that sticker by pulling the radio out (push the 2 skinny vertical "bars" on each side of the radio to pop them out, then pull on them to pull out the entire radio unit).

SOURCE: volvo v70 horn not working

If it's not the fuse, the connections may be worn out inside the wheel.

SOURCE: I need to replace the

A full walk-through of your issue may be found here:
http://www.matthewsvolvosite.com/2009/05/replace-window-switches-on-volvo-s70-v70/
Have a nice day!

SOURCE: 2001 Volvo V70 2.4 T5: rough idle, check engine flashing...

when the light flashes there is a misfire taking place check the plugs and spark plug wells look for black lines down the sides of the plugs