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#1
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Hello everyone,
The temperature around here has nosedived to ~-10degrees (C), and this morning my 86 300E really shook and shuddered for a few seconds before settling into a (somewhat rattly) idle. I would hate to subject the car to this abuse daily.... I'm currently running 10W30 Mobil1 and high quality fuel. I used 5W50 Mobil1 last winter, but burned a bit more oil than usual. Any suggestions? Regard, Nick |
#2
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It sounds pretty typical for an engine to do this when it is that cold. You could install a block heater and plug it in. It would have instant heat and the oil would be thinner upon cranking.
------------------ Benzmac: 1981 280GE SWB 1987 16V ASE CERTIFIED MASTER AUTO TECHNICIAN SERVICE MANAGER FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM |
#3
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I have heard that deposits behind intake valves interfere with the proper delivery of atomized fuel into the combustion chamber. The deposits disrupt the flow of air around the valve. As gasoline is hard to atomize at cold temperatures, disruption of the atomized spray can have adverse effects on good combustion while starting. Once the metal warms up, it becomes less critical. I have had very good results with a product called "BG44K" - it is expensive at about $20.00 for a 10 oz. can but worth it.
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#4
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last monday, the temps dipped to -20C here in Toronto.
while starting my 190e2.6, i simply crank it (it's good that it starts instantly) and wait for the oil pressure gauge to show normal operating pressure. It's interesting that time seems to slow down while waiting for the needle to rise. And then i let it cook for a while before driving off. while waiting, i have to pump the clutch a few times (it's a manual) to warm up the hydraulic fluid and flex those frigid linkages. upon driving off, the engine and drivetrain make more than the normal noises. I hear some kind of slushing noise in the first minutes of driving off, the tone of which seems correlated to vehicle speed, independent of gear choice, even while coasting in neutral. Which makes me think that the manual transmission itself needs to warm up. It indeed is more difficult to shift while first driving off. and i am easy on the brakes in the first few kilometers so as not to produce wide variations in temperatures across the rotors, lest they warp - maybe i'm being overprotective here. once warmed up and flexed thoroughly, it's back to normal and the car is happy happy happy. But my butt is still cold because the seat heater takes some time to take effect. i worry about the abuse the engine, drivetrain, and rear suspension bushings go through in this process, but then i just think about the extreme cold weather testing these cars are put through before they are released to the public, and my mind is put to rest. but then, i also want to see the stuff the car is made of, to see where my money went. |
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