Hi, thank you for the video. I also have an issue: ı have a squeling and knocking noise when the AC is OFF. But when i turn it on, the engine sounds really smooth and nice? Would be glad if you can help :/
Hi. Just looked under my 2005 2.5tdi and look to have a similar issue. Can you link to where you got the spares please. I've found something similar, but it's listed as alternator part.
I changed the link in the description below the video to show the parts required. Check it out . Also the alternator and aircon compressor use the same part numbers. 😁👍
in my Van T5 despite having been replaced: power steering pump, compressor, radiator, dryer, pressure switch, expansion valve, magnetic clutch and pulley continue to break the joint in this way in just 2/3 days of use (broken the clutch also sometime). what can be the cause?
Not seen repeat failures on these myself. Something must be misaligned, getting tight or vibrating. Had the previous compressor seized? I only use genuine or quality named aftermarket parts. Is the alternator freewheel pulley ok? Good luck and let us all know if you get to the bottom of it. 👍
@@Automotive_Solutions the previous compressor was working (installed for about 3 years, replaced a blocked one), the pulley is new and replaced twice in a few months because in one case it was spinning free in all side and in the other case it was blocked. the spare parts are aftermarket and I thought of the low quality, this would certainly justify a reduced duration, but not reduced to a few hours I think! I would add that the system works correctly when traveling on the motorway and breaks down along mountain roads where there are many variations in speed, it seems that it cannot stand the of restarting when the system is already under pressure. as a last thing 3 years ago the compressor connecting pipe was replaced, in the new VW version it eliminated the temperature sensor that was originally present, but I don't think this can affect it. Thank you.
@@danielep6870 one other thing to make sure is that the condenser fans run when the air conditioning is operating. If not this can lead to high pressures and put a strain on the compressor which in turn puts strain on the rubber drive coupling. If you have refrigerant gauges you could see the pressures.
@@Automotive_Solutions I'm sure the small fan works right away, not so sure the big fan always works. a couple of months ago a functional test was done from standstill with gauges pressure and everything seemed to be in order, but in real running conditions it could be very different. Thank you
@@danielep6870 without diagnosing it myself it's very hard to give you any direction to go in. Also it's had lots of work done and parts replaced so that can sometime complicate things if inferior parts are used. I'm not sure about the compressor pipe being replaced with a different design with a sensor being removed - that's odd.
Interesting & weird setup... I've never seen something like that! Strange that the belt is so thick, yet the teeth are standard sized teeth. Would have made more sense to make the teeth wider & taller for more strength... no?
I suppose they could make many more parts last longer but choose not to. These are supposed to be service items anyway, just like a timing belt. Many don't seem to get changed until they fail.
@@Automotive_Solutions Yeah, you did say that in the video (service item)... the size / ratio of the teeth just seems off to me, when compared with the thickness of the belt.
In order to get your head round this unusual but clever engine you need to think of that small rubber coupling as a fuse. The coupling is clearly thick enough to drive the compressor (and there is a second identical rubber coupling which drives the alternator in the same way) but in the event of either alternator or compressor seizing, the teeth are designed to strip to preserve the all- important valve train. Remember this is a completely gear-driven engine which has no cam belt, alternator belt, crankshaft pulley, nothing is turning on the outside. Eleven internal gears drive the whole thing, water pump, power steering and all. I can't think of any other engine where you could open the bonnet/hood and slide your hands down anywhere you liked with the engine running and not expect to get your fingers mangled. (Apart from the V10 version which is two of these oddfellows stuck together). Yes it is weird, but in a good way. :-)
It might not look old but was probably the original part when vehicle was manufactured. I've seen these quite a few times and it's generally lack of following the manufacturers service schedule. 👍
If this has helped you out please consider using the thanks icon below the video.
Hi, thank you for the video. I also have an issue: ı have a squeling and knocking noise when the AC is OFF. But when i turn it on, the engine sounds really smooth and nice? Would be glad if you can help :/
Did you have to degass the compressor before removing?
To remove the compressor from the vehicle it will need the gas recovered first. 👍
Hi. Just looked under my 2005 2.5tdi and look to have a similar issue. Can you link to where you got the spares please. I've found something similar, but it's listed as alternator part.
I changed the link in the description below the video to show the parts required. Check it out . Also the alternator and aircon compressor use the same part numbers. 😁👍
@@Automotive_Solutions great. Thankyou very much.
in my Van T5 despite having been replaced: power steering pump, compressor, radiator, dryer, pressure switch, expansion valve, magnetic clutch and pulley continue to break the joint in this way in just 2/3 days of use (broken the clutch also sometime). what can be the cause?
Not seen repeat failures on these myself. Something must be misaligned, getting tight or vibrating. Had the previous compressor seized? I only use genuine or quality named aftermarket parts. Is the alternator freewheel pulley ok? Good luck and let us all know if you get to the bottom of it. 👍
@@Automotive_Solutions the previous compressor was working (installed for about 3 years, replaced a blocked one), the pulley is new and replaced twice in a few months because in one case it was spinning free in all side and in the other case it was blocked.
the spare parts are aftermarket and I thought of the low quality, this would certainly justify a reduced duration, but not reduced to a few hours I think!
I would add that the system works correctly when traveling on the motorway and breaks down along mountain roads where there are many variations in speed, it seems that it cannot stand the of restarting when the system is already under pressure.
as a last thing 3 years ago the compressor connecting pipe was replaced, in the new VW version it eliminated the temperature sensor that was originally present, but I don't think this can affect it.
Thank you.
@@danielep6870 one other thing to make sure is that the condenser fans run when the air conditioning is operating. If not this can lead to high pressures and put a strain on the compressor which in turn puts strain on the rubber drive coupling. If you have refrigerant gauges you could see the pressures.
@@Automotive_Solutions I'm sure the small fan works right away, not so sure the big fan always works. a couple of months ago a functional test was done from standstill with gauges pressure and everything seemed to be in order, but in real running conditions it could be very different. Thank you
@@danielep6870 without diagnosing it myself it's very hard to give you any direction to go in. Also it's had lots of work done and parts replaced so that can sometime complicate things if inferior parts are used. I'm not sure about the compressor pipe being replaced with a different design with a sensor being removed - that's odd.
thx!
Interesting & weird setup... I've never seen something like that!
Strange that the belt is so thick, yet the teeth are standard sized teeth. Would have made more sense to make the teeth wider & taller for more strength... no?
I suppose they could make many more parts last longer but choose not to. These are supposed to be service items anyway, just like a timing belt. Many don't seem to get changed until they fail.
@@Automotive_Solutions Yeah, you did say that in the video (service item)... the size / ratio of the teeth just seems off to me, when compared with the thickness of the belt.
In order to get your head round this unusual but clever engine you need to think of that small rubber coupling as a fuse. The coupling is clearly thick enough to drive the compressor (and there is a second identical rubber coupling which drives the alternator in the same way) but in the event of either alternator or compressor seizing, the teeth are designed to strip to preserve the all- important valve train. Remember this is a completely gear-driven engine which has no cam belt, alternator belt, crankshaft pulley, nothing is turning on the outside. Eleven internal gears drive the whole thing, water pump, power steering and all.
I can't think of any other engine where you could open the bonnet/hood and slide your hands down anywhere you liked with the engine running and not expect to get your fingers mangled. (Apart from the V10 version which is two of these oddfellows stuck together).
Yes it is weird, but in a good way. :-)
@@transporterman1269 " the teeth are designed to strip to preserve the all- important valve train" perfect explanation, thank you!
Strange that rubber Dosent look old
It might not look old but was probably the original part when vehicle was manufactured. I've seen these quite a few times and it's generally lack of following the manufacturers service schedule. 👍