I used oven cleaner (don't let it soak overnight because most "eat" aluminium ) + pressure washer and a toilet brush is what I used on mine.
It didn't get rid of everything but it was clean enough and cheap :)

I also tried burning it off with an air compressor and a large propane torch. Didn't ...

I think you're talking about the vacuum line that goes to the flame trap. It is bundled together with the line that connects the flame trap with the PCV box.

I'm trying to find a good diagram but apparently I'm rubbish at googling

Just use a punch a bit smaller than the pin diameter. I have never mushroomed one enough to cause a problem, and I've had some nice rusty ones over the years.

yep, I used a punch as well and some CRC penetrating oil (PB blaster is probably equally good, we don't have that in Europe AFAIK), it ...

I bought the little Motip bottle. But I suppose clear coat is clear coat since it's, well ... clear :P

EDIT: was under the hood today and apparently I have colour n° 418 which is Regency Red/ Pearl red. They look very very similar on google images to be honest, so check the ID plate to be sure.
I ...

Looks like the same colour as mine which would be Ruby Red. The Volvo colour code is 414 . You can confirm this by looking under the hood at the ID plate of your car. It's on the right side.
http://www.paintscratch.com/touch_up_paint/images/color-id-tags/Volvo-Paint-Code.gif

Which touch-up paint ...

Could this be helpful?
https://www.matthewsvolvosite.com/forums ... 8&p=285984

Thanks for that Audi link, amazing job that Audi guy did in his writeup!

Bienvenue sur le forum!

Thank you for the warm welcome. I have been lurking here since the day I got it (somewhere in June / July IIRC)
(off-topic note: My native language is Dutch. Belgium has a Dutch and French speaking ...

Kind of off-topic but might be interesting nonetheless:
Amen. I don't think the volume of air passing through is increasing, so much as the air doesn't become turbulent when passing by.
Actually, turbulent airflow across a heat exchanger is more efficient in removing heat than smooth flow.
Yes ...

My 2 cents to this thread:

I couldn't get the control arm of so I followed the process as detailed in this video:
http://www.youtube.com/watch?v=3WM38XwKBsk

Some notes for others:
- Possibly a European thing: Stabilizer link nut was 15 mm and I had to use a 16 mm wrench behind the mount. (16 mm of ...