1. I would suspect that your charging system might have low voltage... this would cause the ABS light to come on. But you will have to get the codes read to find out for sure.

2. Can't help you there, except if you just had A/C work, take it back and make sure they fix the problem, at no cost to you!

3. I have this ctr vent airflow problem as well. My recirc flap is also faulty... wind blows through the vents when I'm on the fwy with the system OFF. It is a vacuum leak. Not too expensive... fairly common.

4. Your engine jerks hard when put into gear? Does the CAR jerk? SOunds like it might be the front FLEX DISC... usually around 100k miles these will go bad. Symptoms include a clunk/shake when put into gear, or from D to R or from R to D. Part is about $75, and labor should be less than 2 hours.

5. This reverse delay is a common problem with the trans. If you do a search, you will find many results. If you can't live with the delay, then you must do a rebuild. But I live with my 2-3 second delay... no problem really.

6. Sounds like the shifter bushings are worn. Also not an expensive repair.

7. The only thing I can suggest is to change all 3 brake lights with OEM bulbs purchased @ your local MB dealer. Likely, and hopefully, this will clear up this problem. Is your "EXT LIGHT OUT" warning indicator lit in the dash?

Good luck! How many miles do you have?

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)