1) Reattach the hose with a better clamp. The coolant level sensor is well-known to corrode. Go to MB, buy another one, and change it out. Very simple job. Make sure you have some yellow MB coolant handy to refill the reservoir.

2) Check engine lights could be anything - you need to get the code read by a scanner. Identify the problem, fix the problem. Could be a simple little thing.

3) Bulb is easy.

4) Hissing sound could be your fuel pump working rather than your suspension. Does your suspension sag? Is the self-level working?

__________________
- Brian


1989 500SEL Euro
1966 250SE Cabriolet
1958 BMW Isetta 600