If you tell me where the leak is coming from I can tell you how to repair it. I've just been through a similar problem with an 850 T5. They aren't too bad but if it's a rear main seal then the motor has to come out.
Also check the pcv valve, mine was badly clogged and caused a bad oil leak, much cheaper fix!
From personal experience with 850 turbos. Check/Replace oil cap $4, turbo O-ring & gasket $15, valve cover (form a gasket) and check return line hose and clamps. Volvo has special clamps. The inter-cooler and clamps on 94's are common deal.
Either weld or replace.
Replace the cam seal.
A small hole in the fuse line would cause a gas leak on a 1994 Honda Accord LX. In addition, a hole in the actual fuel tank would cause a leak.
I had the same problem on a 1994 525i. Replace the radiator.
Non, replacing a water pump will not cause a hose to leak.
I paid the dealer just over 1000.00 to replace radiator core and related parts. It had a very slow leak that only manifested when the engine was hot.
Smoke from the radiator would be do to a leak evaporating off of it. Find the leak repair or replace necessary parts.
In the filler neck- follow instructions carefully
Evap System. Large leak.
Sunroof repair for a 1994 VW Golf depends on what the problem is. If the sunroof wont open or close, check the fuse, wiring, switch, and motor. If it has a leak, then look for the exact place of the leak to find the cause and replace the gasket.
A pcv valve that is stuck open allows oil vapor to be burned without a lot of smoke. I would replace this first.