Aircon on - power down

sp33der · Sep 7, 2009

Hiya, anyone else with aircon find that the power drops considerably when you turn your aircon on? Have to turn mine off to get up some of the steep hills round here ! Gradients that would be ok in 3rd are down to second gear and steeper ones that normally it'll chug up in 2nd mean a change down to first ...our drive's really steep and I usually have to turn it off to get up it in first!

discool · Sep 7, 2009

Yes it does take some power although I only notice it on acceleration, no problem with hills but I do have a bit more power than a Tdi.

hughesy · Sep 8, 2009

Kinell I know aircon uses some power but it shouldn't be a choice between being cool and going up hills. Summat's wrong there somewhere.

sp33der · Sep 8, 2009

That's kinda wot I think! :-(

string · Sep 8, 2009

My 200 slows a bit when cold and when towing, not suprisingly but gets on okay when warmed up except when towing and thats when I open the windows. Interestingly the fuel consumption doesn't change much unlike my XJ6 which turned out to be a tuning issue.

sp33der · Sep 8, 2009

It seems down on power all round actually, now that we're back to Spain there are hills that it would go up in second that I now have to change down to first to get going up. Gonna clean the sedimenter out now, can't find fuel leaks, all filters renewed recently, see if that helps.

sp33der · Sep 8, 2009

Just cleaned sedimenter out for the first time, fair bit of crud in there........anyone know a good cure for an armpit full of diesel btw?

Don't think it's made a lot of difference though.

rollin danny · Sep 8, 2009

Check the pipe that go from the turbo to the fuel pump [round the back of engine] isn,t melted or split or you wont get any boost fueling.The diaphram in the fuel pump can get stuck in the open position with similar results. Check waste gate actuator isn,t stuck open. When youve done that come back for more. Just a warning about the fuel pump .If you take the top of dont rotate the position of the diaphram or you,ll mess with the fueling.

sp33der · Sep 8, 2009

Thank you for that, I know there're loadsa posts on here about power or lack of it but I did the obvious checks so this is really useful. I'll start working my way through em as soon as pos - starting work tomorra after a two and a half month summer lay-off..eek!
cheers
Rich

Aircon on - power down

sp33der

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discool

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hughesy

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sp33der

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string

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sp33der

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sp33der

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rollin danny

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sp33der

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