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#1
10-05-2002, 08:32 AM
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84 380sl start up noise
hello all
have had the 84 for 3mo / the weather is cooling in this area -i have a noise on start up - sounds something like a loose belt - seems to come from compressor / water pump belt area - goes away aft @ 3 or 5min with a click/ as if something has switched on / maybe the thermostat kicking in? the car has 99k / have been taught about the timing chain and rails / will be having that checked next wk question / is the noise a cold weather start noise? / doesn t exist when the car is warm /is this a normal warm up noise common on these cars during cold weathe start-ups? past owner changed the oil at 2k intervals i have put 300 mi on car since i bought it / the oil is still clean as new oil change / without any visual oil loss thanks in advance j littletrees 
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#2
10-05-2002, 08:47 PM
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Hum...
Being in Texas, I've yet to experience the cold start conditions this season. However, your condition begs for more information... Did you have this noise in the summer? Maybe you just did not "hear" it since you are a new owner... I'd thing there should be NO discernable difference in the winter start-up other than it should take longer to get to operating temperature than in the summer..
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Mark Herzig 1995 E300D 153K 1985 300D 142K (sold) 1979 450SL 122 miles (sold) 1992 500E 127K (sold) 1987 300SDL 132K (sold) 1986 300E 161K (sold)
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#3
10-05-2002, 11:17 PM
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Not sure if your car has the AIR pump or not, the AIR pump only runs a couple minute upon cold start-up. Next time you start up on a cold engine, get out and look in the engine bay and watch the electro-clutch pulleys (if AIR pump equipped, you'd have two one for A/C the other for the pump). Could be the AIR pump is noisy or needs a new belt.
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Mike Tangas '73 280SEL 4.5 (9/72)- RIP  Only 8,173 units built from 5/71 thru 11/72 '02 CLK320 Cabriolet - wifey's mid-life crisis 2012 VW Jetta Sportwagon TDI...at least its a diesel Non illegitemae carborundum.
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#4
10-06-2002, 10:29 PM
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84 380sl engine noise on start up /cold temp
thanks guys
saw the mechanic / friday / who has worked on the car for the past 12 yrs he told me the noise is the air pump and is working as it should he put a new air pump in 4mo ago / he said it didn t really need one only new belts / which he changed as well he said if the car sneezed the last owner had it fixed MikeTangas / u hit the nail on the head again thanks people / i'm new to the mercedes / the engine is much different from anything i have ever owned nothing like the old english cars does ride similar to the volvo p1800s i had jim
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