I just replaced an 02 sensor, had the radiator flushed, had a new water filter, spark plugs and timing belt installed. I had taken my car in because of a "check engine light" coming on. It was diagnosed as a faulty 02 sensor. As I was afraid, the mechanics diagnosed other problems which led the above-noted repairs. I had to have my car towed home last night due to major overheating then returned it to the mechanic. The repairs were only completed 2 days ago. I'd like to be somewhat prepared for this new diagnosis that I'm sure will be coming saying they have more work to do. What do you think may have gone wrong following the original repairs. I'd like to go in and not feel totally uneducated. Thank you.

constant noise unless very slow. Changed the type of new tires twice and there is still a noise, hum, vibration. It has gotten louder with time. Turning the car does not seem to change the noise. It's from the front end driver side as far as I can tell.

I need to remove my oil dipstick tube and i am not sure how to go about removing the tube safely.

Took to dealer and they kept the car and said it is unsafe to drive "metal on metal." What should it cost to fix this?

control arms and bushings $1044 +tax
rear main seal leaking some $ 900 +
stabilizer links 171 +
rear main seal is leaking some 900+
Excessive rust on bottom of car
SRS control unit 520+
hood release cable 187+ paid $3400 keep or get rid of?

Automatic trans. Hoping this might be a somewhat common problem with an easy solution.

I replaced the altinator and have no power battery is good but nothing

The car rumbles, drives hard until warmed up. Their diagnosis said it needs a side engine mount. They didn't say if it is a right side or left side. Does it matter? How much should this cost?? I'm trying to get estimates.