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If the top hose is hot and swollen, while you can touch and hold the bottom hose (you said it was cool), I'd suggest your radiator is clogged ... quite severely in fact. The normal flow of coolant is from the top to the bottom of the radiator in most cars. If the top radiator hose is bloated and hot, it's getting some amount of fluid through it, but not ...


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From little I know about cars, if you said you've bled the car properly and the problem is still continuing from what I know that the hose could and could not be the problem. The hose being hot and the bottom cold is normal this means it's working in a way, doing its job but if it's still overheating you could try changing the top hose if it's swollen there ...


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Did you see the compressor kick in? If not, I'm thinking your car doesn't have any refrigerant in it. If they put the gauges on the system and it didn't register anything, that's a pretty good sign it doesn't have any refrigerant in the system. If your car has completely lost its charge, this means there has been a catastrophic failure somewhere in the ...


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The best way to test a spark plug in home conditions is to remove all plugs, put them in coils, put the spark plug (metal part, thread) on a engine metal part (earth), and turn a key, or better to ask someone to turn it. And see a beautiful blue spark in every plug. If there is any missing spark, put any other plug in that coil, so you can figure out if it ...


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To test the coil, as you said there's only one cylinder that isn't working, just switch the coils of two cylinders. For the spark plugs, again you'll just switch two if you want to test one against the other, however unless the spark plugs just got replaced, I would generally replace them anyways, as it's so infrequent that you get in there.


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On the pre-LCI (06-08, I believe) e90 3 series, the rings are illuminated by a bulb which is below the headlights. The rings have a beveled edge at the bottom where light shines into and illuminates them. The bulbs on these are annoying to replace, requiring removal of the fender liner to reach them. On yours, the post-LCI e90(or 1 or 2), they moved the ...


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Going from very simple first principles, just try and eliminate possible causes: First, look at the bulb itself. Even partially removing it should let you see whether it lights. If not, swap the left and right bulbs - does the problem follow the bulb? If it does, replace the bulb. If it's not the bulb, it's something wrong with the ring itself - perhaps ...



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