Date registered: Feb 2005
Vehicle: '97 E420 Sport Brilliant Silver
Location: Florida, USA
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DIY Oil Change -- E420
I thought I'd give everyone some insight on changing your oil in your W210. I have a '97 E420 and this may be only applicable to 96-97 W210 vehicles.
You must first unscrew (4) screws to eliminate the plastic cover under the car (2 front, 2 back). Under the cover you will find the oil box and the screw to empty the oil. (Remember these cars use 7-8+ Quarts of oil so make sure you have a larger pan/bucket under the car to hold this much oil)(mine was a 5 quart pan and it overflowed, I learned my leason quick)
Next, Is finding where the heck the filter is... I was searching for the canaster oil filter under the car and found it popping up towards the air box/air filter, I realized I could not remove it from under the car. I popped the hood and removed the air box and filter (using a phillips head screw driver). Sticking out was the oil filter resevoir. Using a socket set I removed the 1 long screw, then removed the lid , then removed the old canaster filter. I installed my new filter and put the new seals around the lid which came with my filter. I added around 8 Quarts of oil and I was set to go.
I live in humid Florida and the dealer recommeded since I have 116k on my car and since I had not been using synthetic, to stick with conventional oil. He recommended Castrol or Valvoline 20w50 for the humidity. Using synthetic or Semi now would possibly lead to more common oil leaks. He said 1998+ W210's semi and synthetic would possibly be the ticket. Well there ya go, I thought I'd post this because everyone needs some insight sometimes.