xoxbribri

I'm taking my car in on Tuesday (soonest my mechanic has after waiting 2 weeks) but wanted to get some insight first.

I have a 2009 C300 Luxury with 108k. When I start it after it has been sitting for a day or two, there is a ticking noise from the passenger side in the engine. When the car warms up to temperature, the noise goes away. Also, I park my car on the 4th floor of a parking garage and when I drive down there is a push feeling when the car tries to switch gears (more like every other gear). When I get the car outside, it feels fine except for 4th gear where it is a little hesitant while driving. My gas consumption hasn't changed at all and I got an oil change roughly 1500 miles ago. I feel like a transmission service is obvious as it's never had one done in the 8 years I've owned the car however, could the ticking be from the transmission or something else?

shotgun_banjo

If you are the original owner and with those mileage you have not changed the tranny fluid then you might have a tranny waiting to fail on you. Is there any whining sound coming out? If there is then it might be too late for that tranny.