baba

Have a bmw 530ia 2006 n52 engine has problems with idling, it works ok then suddenly drops idle to 550-600 rpm, it feels like a vibration in the boat, I think my AC compressor is working hard, when I turn off the fan, you increase the idle speed and the car feels great again but as soon as I turn on the fan so dips idle, the ac kopressorn work hard? will not idle increased when ac is running? my flag instead.

KyleB

E60 uses a swash plate type compressor, which if I'm not mistaken does not have a clutch and thus is always engaged. There should be no change in parasitic drag on the crankshaft regardless of whether you have a/c on or off. perhaps you have an electrical system issue instead?

BTW, I noticed your screen name is "Baba". Any chance you have a brother named "Booey"?

baba

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Well it's true my ac compressor is the later model, I have no fault codes have changed spark plugs, magnetic solienoider, ignition coils, air filters, etc. changed the belt tensioner today., When I turn the fan to off will raise idling and working smoothly nicely so once I turn the fan so dips idling and I feel vibrations in the steering wheel and seat, feels like a boat,

And I have no brother by that name

KyleB

Is it doing it regardless of whether the car is in drive, reverse, park, or neutral?

baba

yes that's right, you look at the tachometer dips a bit and it starts to vibrate then suddenly it goes up a little so it's ok, spällar not matter what gear it is in feels like the engine is working hard then releasing it ok works fine, as I said no Error Codes

baba

have an old 4 cylinder golf it works smoother idle for a min 6 cylinder bmw, new tändsfitf, new airflow sensor, it is anerlunda just for this model just a heat sensor, new software for car E60 -12-11-500, new oil the automatic transmission, new air filter, car has 195 000 km, getting tired of shit, but it's fine when you're driving it's only at idle it is rough