My E320 WITH 97K miles vibrates when i shift to drive or reverse. The car makes a grooning sound on fast excelaration but not as loud after the engin gets hot or after a few miles. Plugs where changed at 96k. could the belt or tensioner cause this problem. the harmonic has been checked.Thanks for the advise in advance.
Loud "grooning sound" on acceleration? First guess, from your choice of verbs: I would check the trans fluid level and quality. Auto trannys have a tendancy to get loud (louder under load) when low on fluid. The noise abaiting when hot would make sense if trans fluid is low when cold (noisy) but not low when hot (not noisy). The vibration might be a clutch(s) not having enough fluid (or borken down fluid)and therefor not able to maintain sufficient friction between the plates causing slippage.
Of course this is just a educated guess from my experience in owning cars and driving large emergency vehicles.
E-WAGON thanks for the reply. I have not seen any tranny fluid leaks on the garage floor,but i will check to see if the tranny is wet with fluid. How do i check the fluid level and what type fluid should i use if fluid is needed? If fluid is needed should i consider a fluid change? PS: 98 E320 WITH 97K. THANKS[:)]
By all means change the fluid. To check the fluid either the dealer can hook up their computer and charge up $60 or you can by a dipstick for ~$35. I listed all the required part numbers in a reply to a previous post (and don't have them available to me now). Search the 210 fourm for my user name.
My E320 WITH 97K miles vibrates when i shift to drive or reverse. The car makes a grooning sound on fast excelaration but not as loud after the engin gets hot or after a few miles. Plugs where changed at 96k. could the belt or tensioner cause this problem. the harmonic has been checked.Thanks for the advise in advance.
Id check the Drive Shaft Flex Disc & the drive shaft U-Joint. The Flex Disc is common weak part on many later MBs.......Your Mercedes is equipped with a two-piece drive shaft. Between the two shafts there is a universal joint. Because of the length of the drive shaft, the u-joint was installed there to prevent any large angles at the front and rear, where it connects to the output flange of the transmission, and the input flange of the differential. Without getting to technical, it is a good thing to have this type of drive shaft cause it keeps objectionable vibration to a minimum. The u-joint is the one component that is mostly overlooked. A worn universal joint can cause vibration......Also inspect the Flex Disks. These can cause vibrations also. They connect your drive shaft to the back of the transmission and the front of the differential. They are large rubber disks. Look for any splitting, or reinforcement fibers sticking out. If you find any of these conditions replace them right away. The front ones should last about 75K miles and the backs to last at least 150K miles. First symptom is clunking sound while coasting to a stop
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