Don't use WD40 its crap. Try "pocket Rocket" or "TRi-Flow" (Bentley use it) or "ACF-50" (Aircraft grade) is easily the best stuff on the market.Welcome from Wirral, England.
Whilst you wait for the brainy folk to come on it would be worth doing a search for Kompressor threads. There is a good article on changing the oil and it doesn't look too hard or time consuming. If memory serves MB recommend changing at 100K , but the clever guys reckon it's worth changing at 50K.
Those that did this seem to have very different volumes of old oil (almost none in one case). There's also a you tube link to a brilliant guy who shows how it's done (Frapabox?).
Good luck. Let us know how you get on.
You can tell I'm not mechanic minded. Have you tried unplugging the electrical connector (there'll be one). Check it's clean and pins are ok. quick but careful spray of wd40 or similar (some components don't like wd40 so don't be splashing it all over).
Presumably you are talking US gallons which are smaller than UK gallons...Driving across 700 flat miles of eastern Montana and North Dakota on 4 lane hwy. with the cruise control on. No need for more than 80 hp. Only getting about 32 mpg. That small car should get closer to 40 mpg with the gearing it has.
A combination of many things will reduce the mpg on a 16 year old car. Now I know where you are coming from to ask the question I see your reasoning! However there would be one main problem to switching off the s/c whilst cruising - the intake would be blocked by two large stationary screw gears restricting the air flow quite some. The ECU would not like it either and start making all sorts of compensations.Driving across 700 flat miles of eastern Montana and North Dakota on 4 lane hwy. with the cruise control on. No need for more than 80 hp. Only getting about 32 mpg. That small car should get closer to 40 mpg with the gearing it has.
I can answer my own question :smile: I thought I was going nuts , never realised that older models had a clutched supercharger :wink:Can I ask you guys how you would propose to turn off the supercharger , where is the electric clutch you speak of :wink:
Thanks for everyone's replies.I doubt there would be much difference in fuel consumption connected or not , it's an old engine design . Mine actually seems better on fuel since the pulley and re map