In summary, I have driven the car about 75,000km, and maintained the car as per MB's schedule (fortunately, I have the signed log book to prove it). To date, my expenses are approximately 10,000 dollars, and now the transmission has failed and I face a $3200 repair bill.

Here is a list of problems, for those that are interested:
- Broken lock cylinder.
- SRS warning light came on, the repair of which required removal of the front seat and replacement of the seat belt buckle sensors
- Right rear power window has failed (the regulator had to be replaced)
- Drivers' side headrest failed.
- Every month, at least one of the exterior bulbs (headlight, parking, brake, or turn signal) needs replacement. (I have replaced more bulbs in this car than all the other cars I have owned combined.)
- Both O2 sensors required replacement.
- Sunroof bracket broke. Replacing this part will require complete disassembly of the sunroof.
- Underhood Insulation degrades prematurely. It was replaced twice.
- Vanity Mirror hinges on both sides broken, now held in place with cotter pins from the local hardware store.
- Brakes: A Mercedes-Benz dealership inspected the brakes and informed me that the brakes were still in good working order. Within weeks, the brakes developed a squealing sound and were not stopping the car effectively. I took the car to an independent mechanic for inspection. The calipers had seized, destroying the pads and rotors. Replacement of virtually every brake component was required. Assuming the dealership performed a suitable inspection, it seems that the calipers simply failed.
- Air Conditioning unit failed. This despite the fact I prefer using the sunroof and use the a/c only infrequently. The dryer and expansion valve were replaced at cost of $513.96, which served only to reveal that the compressor had also failed, which was also replaced.
- Fuses, I am no longer able to use an auxiliary device in the cigarette lighter. The fuse blows as soon as I turn the device on. When I removed the top of the fuse box, the paper ‘map’ of the fuse box appears burnt as though the fuse panel has overheated. I will add that the cigarette lighter gets jammed and cannot be removed if one mistakenly presses it in.
- The water pump failed
- The transmission has failed completely, and now requires replacement

The only bright spot in the whole picture is that the service personal, the front line troops, try to be as helpful as possible. And a couple of them are pretty candid, two of them saying to me that they feel sorry for me.

But the O2 sensor experience is more typical of the service I receive. I brought the car to the dealer when the check engine light came on. I specifically asked if the there was ANY reason I shouldn't drive the car. I was told that there wasn't. (About the same time, I had the oil changed.) So I booked an appointment for three weeks down the road, the earliest they could get me in. They diagnosed that the 02 sensors failed and performed the repair. I paid for the repair, and brought the car home. I looked through the manual, and realized that the sensors should have been under warranty. The car was over the limit when the car was brought in, but was well under the limit when the units failed. MB refused to believe me. Finally, I was able to find the receipt for the oil change, which showed the mileage. I gave them the choice of paying up or going to court. They paid up. However, this process took several weeks, and innumerable phone calls.

An interesting aside is that the service person at MB Canada wouldn't provide me the name of their manager. I got her name from another website of disgruntled MB owners!

Some of my experiences are almost comical...one occasion I picked the car up after an expensive repair and the first time I opened the sunroof, the bracket broke and landed in my lap. Another occasion I picked the car up after replacing the water pump and one of the lights in the dash failed as I was leaving the lot.