Questions for W140 S500 Urgent!!! - PeachParts Mercedes-Benz Forum

Gilly · #1 10-04-2004, 11:42 PM

It sounds like the Parktronic may be working, hard to tell based on your description. I'd try getting within a few inches of something substantial such as a wall before criticizing it too uch. Use a helper to make sure you don't actually hit anyhting. Read the manual on the system too, and check front and rear. It is possible that some of the sensors are bad, I've worked on a couple cars where 1 or 2 sensors went bad. It is also possible for a shop to use the diagnostic computer to "read" the distances on individual sensors, which makes diagnosis real easy.

Gilly

Gilly · #2 10-04-2004, 11:46 PM

Quote:

there are 4-5 block orange and 2 block red... 2 block red was on only..............

Should start on the amber side, then get more and more squares as you get closer to an object, the red ones come on last (closest, within about 6 inches or so I think, then you should have ALL the lights on and at some point (maybe as soon as the first light comes on, not sure) you get the audible warning. I don't know why you would have ONLY the red lights, the amber should come on first, then the reds come on as you get closer.Maybe the display has burned out LED's?
Gilly

jchowe420 · #3 10-05-2004, 04:57 AM

Hi Gilly,
for the tranny, i still feel very solid, the car itself has 38000 miles. anyway will bring the car to do the ppc next mon, b4 will change the atf first.

for the parktronic, some said there is a tiny battery in every sensor, if those battery fail to work, the parktronic wont woke..... some said maybe fuse problem, anyway it is not a costly repair

Gilly · #4 10-05-2004, 09:59 AM

Quote:

b4 will change the atf first

What does this mean, you're going to get it changed with only 38,000 miles on it?

Gilly

jchowe420 · #5 10-05-2004, 10:35 AM

yes, will change motor oil and atf, plus flush the radiator. then will send the car to do the ppi.

Gilly · #6 10-05-2004, 11:05 AM

In regards to the transmission I believe it's a 722.6, if it is it has the "W-S" switch by the shifter lever.
You hear alot of gripes about this transmission, mostly blaming the lack of a fluid change interval. There were some early problems with it, and unfortunately this IS an early model for this transmission. I don't feel the "filled for life" fluid is a factor, on these early ones especially either you have a good one or you have a dud. How many miles on the car? If it's a high miler, by now you can probably safely say the car has a good tranny.
If you think the radiator has been replaced, you may want to get the fluid level checked and adjusted by an MB shop which KNOWS what it's doing with that tranny. It takes a special fluid. Make sure you research this transmission before touching it or allowing any one else to touch it. There are many threads here on the subject.

Gilly

Gilly · #7 10-05-2004, 11:08 AM

In case I am not being clear enough, I am NOT recommending the transmission fluid change, although you MIGHT want to consider having a Mercedes-oriented shop check the fluid level, ONLY if they have the knowledge and equipment to do it properly. Make SURE they have the ability and experience to do this on a 722.6!!
Gilly