91 4matic. gas a good choice?
Compared to a diesel the fuel consumption will be significantly higher.
A friend of mine bought a 90 300TE 4-matic last month a thinks it's great but he took it to a local MB dealers to have it checked over and no-one knew anything about the 4-matic system!
(He's had it coverted to LPG to reduce fuel consumption)
Who do you turn to if it goes wrong?
With the LPG conversion he gets the equivalent of about 36mpg. but the laod area is taken up by a big tank. A waste in an estate, ok in a saloon.
Hopefully the one you are looking at has been repaired properly. Once they are fixed up they are just as solid and nice as any other W124 IMO....but the repairs can be costly....no different than any other 4wd car though I'd suspect.
-But of course, there are good and bad specimens, like you will see everywhere.
The 4matic system is relatively trouble free. A special 4matic computer operates hydraulic/electric valves located underneat the rear of the car, which control the hydraulic fluid flow into the transfer case.
It uses ABS sensors as speed input and when wheel spin is detected, it locks the rear diff and the transfer case in three stages.
The transfer case itself has special oil for lubrication, and also a separate hydraulic fluid, operating the pistons inside it which engage the front axle. A yellow triangular light in the centre of the dashboard illluminates when the system is operating.
But a common issue is when the 4matic light itself illuminates. Then the system needs resetting( which is a simple procedure ), and a built in diagnostic blinking system tells you what is wrong by how many times the light blinks.
-Overall.. great cars in my opinions...



