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Pulleys replacement (accessories, a/c and idler)
Recently, upon cold start, I noticed a slight squeaking noise in the engine bay. It settled down after about 1 minute, but the next time I used the vehicle (several days later) it seemed to be a bit louder and took longer to go away. These symptoms started about 6 weeks ago as a slight squeak, but more recently (yesterday) has become louder and continues now for a while (3 minutes or longer) before disappearing. I don't drive the X5 daily (once a week at the most) and this all started after I last serviced it and de-greased the engine with a spray pack and hosed it off. I assume it's one of the pulleys - a/c tensioner, accessories tensioner or idler. I won't know which one it is until I take everything apart and since the vehicle is 11 years old, I thought it may be time to replace all 3, along with fitting new belts while I'm in there. I'm looking for a heads-up from anyone who's done this: hints, part numbers etc. 2006 N-62 with 149,000 kms on the clock. Should I be addressing anything else while I have things apart, like maybe the water pump? The only component that's been replaced (to the best of my knowledge) is the alternator - everything else is original, so I believe. I had planned to use my much loved X5 to visit family this week in the city (900 km round trip) but am apprehensive now, not knowing if this could result in me becoming stranded on the side of the road and I must travel in some remote areas with no mobile phone reception ... advice readily accepted and appreciated.
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08/06 build 4.4i Stirling Grey over black |
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#2
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#3
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Very good advice. I'll definitely invest in one this week to see if I can isolate which pulley is the culprit.
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08/06 build 4.4i Stirling Grey over black |
#4
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Do I need to remove the thermo-fan and/or drop the belly-pan to access the pulleys - looks very tight in there...
Can anyone give me a bit of guidance, as I don't have a local 'indy' to help, so must attack this job myself. TIA.
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08/06 build 4.4i Stirling Grey over black |
#5
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Drop the belly pan so that way you will have access top and bottom to find the one(s) that are the issue. Personally I would replace them all and install new belts as they have serviced their useful service life
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2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green |
#6
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I've ordered all 3 OEM pulleys along with new belts from BMA in the states (much cheaper than prices here in Aus). Can I re-use the belly pan bolts or are these a 'one time' use item?
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08/06 build 4.4i Stirling Grey over black |
#7
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Also, it's not really necessary to remove the pan to do the work, only the plastic shield between the bumper and pan. Removing the pan doesn't actually give you any more access. |
#8
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I've had the belly pan off my x5 8 or 9 times and re-use the bolts each time. these are not under severe duty or torque load, I cannot imagine why they would fail? they are no different from any other skid pad bolt....
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#9
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The bolts are under considerable load, hence their class and torque. Driving without this plate secured could result in cracked welds in the tubular sub-frame. But yeah, I've re-used the bolts too...
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#10
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The plastic front facing underbody pan located under the engine needs to be removed to access the belt drive. No need to remove the metal pan with the bolts that is being discussed above that is located further back under the transfer case.
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2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green Last edited by StephenVA; 06-09-2017 at 09:02 AM. |
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