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Old 03-26-2002, 11:59 PM
David C Klasse's Avatar
CheFrac is Back!
Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
Posts: 2,352
Exclamation Oil Change info on M116/M117 V8s!

Got this from MBWorld... and I thought it might be good info!


Registered: Nov 2001
Location: Rancho Cucamonga, California USA
Posts: 581
A word of caution about V8 oil changes
On any Mercedes with the 116/117 engine (mainly of the 380, 450, 560 line), there is a procedure you must do after changing the oil. Draining the oil also drains the oil out of the timing chain tensioner. If the engine is started after an oil change, the tensioner takes a few seconds to build up oil pressure again. in these crucial few seconds, the timing chain is flopping around loosely. On a higher mileage, or even not so high mileage engine, this slapping of the chain has a tendency to break the timing chain guide rails, sending plastic shards into the oil pan, and possibly bending the valves by letting the piston hit the valves. I have seen so many inexperienced, or just un-informed, people make this mistake. When this happens, the heads and oil pan must be pulled off. The valves have to be inspected for damage, the timing chain has to be replaced, along with the guide rails obviously. And all the debris has to be cleaned out of the oil pan. The way to prevent this is simple. Once you change the filter and get the new oil into the car, unplug the ignition coil, which is on the wheelwell just behind the left headlight. Then crank the engine until the oil pressure gauge on the dash starts to move, which usually takes a good 20 seconds. Plug the coil back in, and fire it right up! If you own one of these cars, I wouldn't recommend taking it to a Jiffy-Lube type place just for this reason.

2006 E350 w/ 155k miles (Daily Driver)

1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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