04 Td4 AC compressor clutch

guineafowl21 · Jul 12, 2016

... Won't engage despite pressure in the system and 12V in the supply wire to the clutch. I fed a direct wire from battery +ve and still no joy.

Open circuit in the electromagnetic coil? Prices for new compressors are frightening - does anyone know if you can change just the clutch? Any suppliers of same?

Cheers

Nodge68 · Jul 13, 2016

The clutch can be removed, so I can't see why it couldn't be changed. It's not common for the coils to fail, so you could probably strip them off a second hand compressor

guineafowl21 · Jul 13, 2016

Great stuff. Do I just pull the clutch off with a three-leg puller?

Nodge68 · Jul 13, 2016

guineafowl21 said:
Great stuff. Do I just pull the clutch off with a three-leg puller?

Not always needed tbh. I've done a few AC bearings over the years, they generally come apart ok.
There's a couple of vids on YouTube to watch on the subject.

andyfreelandy · Jul 14, 2016

Hi Guineafowl, I recently replaced my a/c pump off my 2002 TD4 as the pulley bearing was noisy. The compressor and clutch worked fine. It is, of course, still in the garage !! If it is of use to you I can send it for postage only. PM me if interested. So - it is fine and working with a noisy bearing. Having said that the front crank pulley was also making a noise and so I may have changed it without need !!!

guineafowl21 · Jul 15, 2016

andyfreelandy said:
Hi Guineafowl, I recently replaced my a/c pump off my 2002 TD4 as the pulley bearing was noisy. The compressor and clutch worked fine. It is, of course, still in the garage !! If it is of use to you I can send it for postage only. PM me if interested. So - it is fine and working with a noisy bearing. Having said that the front crank pulley was also making a noise and so I may have changed it without need !!!

Argh! Just ordered a scrapyard one off eBay. Having said that, it's in unknown condition so I'd be silly to pass yours up - it may even have the same fault if this is a common thing.

Good old LandyZone and good old Andyfreelandy. PM sent.

Nodge68 · Jul 15, 2016

The bearings are available and easy to replace. Just strip the pulley off and tap out the bearing. Take the number off the bearing and order a replacement off Ebay. Press in the new bearing and reasonable with the replacement coil pack.
The pulley and coil canbe replaced with the compressor on the car

guineafowl21 · Jul 16, 2016

We now have aircon! I swapped over the clutch and coil from the eBay one, got a pipe repaired and the system regassed.

Many thanks to Nodge for your advice and Andyfreelandy for the offer of a spare compressor.

Incidentally, the leaking (aluminium alloy) pipe had corroded as it was held by and in direct contact with a steel bracket/clamp under the radiator. Have LR not heard of electrolytic corrosion?

Paulindre · Jul 1, 2018

andyfreelandy said:
Hi Guineafowl, I recently replaced my a/c pump off my 2002 TD4 as the pulley bearing was noisy. The compressor and clutch worked fine. It is, of course, still in the garage !! If it is of use to you I can send it for postage only. PM me if interested. So - it is fine and working with a noisy bearing. Having said that the front crank pulley was also making a noise and so I may have changed it without need !!!

Andyfreelandy and Guineafowl21.
is the comressor difficult to change and do you have to put 0 rings on the connecting pipes.

andyfreelandy · Jul 2, 2018

You'll need to get an aircon specialist to take the gas out BEFORE undoing any of the unions - pressure is high and the stuff is nasty - environment and faces best avoid it !!!. Then the compressor change is straight forward. O rings are needed. The O rings are special ones (green I think) and my air con man supplied new ones as part of a re-gas.

Hippo · Jul 2, 2018

Tyres fitters who re-gas air con units will remove the gas for yer with their machine.

Paulindre · Jul 2, 2018

T

andyfreelandy said:
You'll need to get an aircon specialist to take the gas out BEFORE undoing any of the unions - pressure is high and the stuff is nasty - environment and faces best avoid it !!!. Then the compressor change is straight forward. O rings are needed. The O rings are special ones (green I think) and my air con man supplied new ones as part of a re-gas.

Thank you Andy, the gas was removed when the specialist found that the pump was kn****ck*red so no prob there, the rest was easy once you have managed to remove the bloody sump guard. Just disconnect the A/C pipes, release the drive belt, undo 3 bolts, one electrical connection and Bobs yr uncle. Did not find any 0 rings though, where were your 0 rings? My freeby is 2003 TD4 Mk1 BMW diesel

andyfreelandy · Jul 5, 2018

On the unions where pipes fit to compressor !! Very important - maybe they were there but you didn't notice - hope they are sound !

04 Td4 AC compressor clutch

guineafowl21

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Nodge68

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guineafowl21

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Nodge68

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andyfreelandy

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guineafowl21

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Nodge68

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guineafowl21

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Paulindre

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andyfreelandy

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Hippo

Lord Hippo

Paulindre

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andyfreelandy

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