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I was driving around and while stopped at gate entry I noticed noise coming from the engine. I made it home, noticed the sound seems to come from the driver side, top of engine. It seems to lessen almost disappear at 35 mph plus, and comes back loud while slowing down to 20 and to idle. I don't have any engine codes. What is this related to, engine, water pump, AC (btw AC is working ok). Here is a short video of the sound->
Any input from anyone on this? Thanks!
BTW I just did oil change about 2 weeks ago, added 7.8Q or Mobile 1 0-40 Euro formula, and have always used this Mann filter. Car read out reported oil level is good, still does.
Removed the belt and noise is not there. The compressor pulley wheel is toast. I found the cover plate fallen off, on the cross member. I just ordered a replacement pulley clutch kit
. I need to figure out how to replace it when it comes in. If anyone has a video link on how to do this please share it.
Also is this bolted to the compressor because I don't see a bolt on my car, tho' pulley is there only the cover plate was off, and I don't see any bolt that comes in this kit. What bolt size holds this kit?
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
I was going to say, it's a lazy lifter or low oil.
Does you car come with a dipstick? If so, I'd check it the old fashioned way.
Lazy lifter, not much you can do. Probably won't hurt anything, assuming it's running ok.
I have a lazy lifter that comes and goes. Engine has 262K on it, but even with a leaking head gasket,
which M111 engine is known for, leaking coolant outside the engine near #4 cylinder.
And it still runs fine, no codes or malfunctions on the dash. Just the occasional click click at idle.
Only other thing you could do is pull the plugs and see how they are, not sure what that would prove,
and not an easy job on M112 with 12 plugs. And you could boroscope inside the cylinders to see if everything looks ok.
Again, probably a lazy lifter.
Personally if it runs ok, as for me, I'd just drive it.
Unless it's really bad and sounds like a thrown rod.
New compressor is in, it came prefilled with 130ml/4.39oz. According to specs oil cap is 4oz. I followed vacuuming instructions - vacuumed for about 30 minutes. Pressure gauge held for another 30 min. Then vacuumed again for about 80 minutes. Next I added refrigerant 2 cans of 12oz. each. According to the chart below I still need to add 2.5oz. I kind of wanted to leave that space and add PAG oil if needed. Reason being when turned off the vacuum pump, disconnected the yellow line, a little oil spilled out. Next when I was purging the yellow line, there was oil that came out before cold freon came out Last 2 pics below.
Question is...
1. if my pressure is aok on both sides?
2. Do I need to add a smidge of pag46 oil?
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
