Thread: AMK Compressor and "Normal Height Only" fault, and fix!

Originally Posted by Grentarc

Is this under warranty for you?

Yeah, the dealerships been great. 3 months is about to expire though so it's all down to me and my basic warranty from here on in. Fingers crossed my omen finds someone else to annoy.

I was going to ask for the old one back to do a rebuild like you are but seeing as it's the old style compressor and not Hitachi I figure A it's probably beyond help anyway. And B it's an inferior compressor so not worth it...

Originally Posted by Russrobe

Yeah, the dealerships been great. 3 months is about to expire though so it's all down to me and my basic warranty from here on in. Fingers crossed my omen finds someone else to annoy.

I was going to ask for the old one back to do a rebuild like you are but seeing as it's the old style compressor and not Hitachi I figure A it's probably beyond help anyway. And B it's an inferior compressor so not worth it...

If they are replacing with a Hitachi, keep it as people have good results rebuilding them, and you could do with a spare... also the rebuild is easier than the AMK

Hmmm maybe the new ones AMK??? The old one was the one you can no longer get a hold of anyway... Or is Hitachi just the cheaper one still being made.

You can still get Hitachi compressors to suit the D3/D4. If the dealer is replacing with the AMK, I would be making sure they know about the associated software update that needs to be done, and that the AMK requires new pipe work to be fitted too.

Originally Posted by Grentarc

or to run the compressor inlet pipe all the way to the engine bay and pipe it into the airbox

I wouldn't draw compressor air from the engine side of the air filter for 3 reasons: the risk of allowing unfiltered air into the engine if the pipe fails, oily blow-back from the secondary air intake and the possibility of lower pressure making harder work for the compressor. I would just fit a large enough disposable paper filter where the original is located.

Originally Posted by Grentarc

You can still get Hitachi compressors to suit the D3/D4. If the dealer is replacing with the AMK, I would be making sure they know about the associated software update that needs to be done, and that the AMK requires new pipe work to be fitted too.

Highly doubt it's the AMK then as i'm going to assume it's a lot more expensive too... Pretty sure it was Hitachi. Come to think of it even in it's current state it might be a good travelling spare... Would still make offroad height with llams.

I think both the compressors by themselves are about the same price (just from a quick online search) but the rest of the kit required to fit the AMK (pipes, plastic covers, software update) will blow the cost out.

Originally Posted by Graeme

I wouldn't draw compressor air from the engine side of the air filter for 3 reasons: the risk of allowing unfiltered air into the engine if the pipe fails, oily blow-back from the secondary air intake and the possibility of lower pressure making harder work for the compressor. I would just fit a large enough disposable paper filter where the original is located.

I don't think I would want to run a pipe that long through or under the car - just another thing to go wrong. Also through the car causes headaches if needing to take the body off, and under would have to cross sides of the car, posing high risk of somewhere to catch or wrap around drive shaft