Can someone tell me how to check the trans fluid on a '98 E320 as when I brake hard and come to a stop, my car will start out in first gear but will slam into 2nd. Normal stops and starts are no problem. Is there a fluid baffle or something that will restrict the sloshing of trans fluid when hard stopping or starting? Thought the fluid level might be too low. What is the procedure (temp etc.) for checking this trans? Can I buy the dipstick from the dealer?

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John B