With the W210 the 4Matic was completely redesigned. However, I'm not sure exactly which year. By MY1998 for sure.

Fuel economy is lower as you might guess. Not only added weight but also driveline friction and lower final drive ratio vs RWD. With a gas model figure 2-3mpg lower than RWD. Most RWD W210 (3.2l V6) get around 17-19mpg city / 27-29mpg highway.

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Good luck.






1998 E320 Wagon