Question: How do you replace and program Mercedes ME 9.7? Possible to do it within 300 usd?
Answer: There are usually 3 optional ways. And the cheapest is 299 usd for all.
1. expensive, the way same as the dealership does!
You can buy the original ECU ME9.7 and SD connect C4 emulator from the dealership.
2. popular among Mercedes owners
It’s popular because SD connect c4 is TOP 1 Mercedes diagnostic and programming tool.
You can buy a decent ME 9.7 ECU on the web. (Refer to the tip below to get a good ECU)
3. cheapest and tested successfully
The cheapest way is: KTAG + decent ECU + ME 9.7 renew cable!
the full kit with the best price: 299 usd
tip: you can see a lot of ECUs for sale online, but pls do buy an ECU that confirms to work good. here’s the functional ME9.7 tested by many Mercedes owners successfully:
the ecu can be used for any Mercedes equipped with ME 9.7:
Series Models Chassis NO Engine Model（ME9.7）
C Series C230 203.052 272.920
C Series C280 203.054 272.940
C Series C280 204.054 272.947
E Series E350 211.056 272.964
E Series E280 211.054 272.943
E Series E300 12.054 272.952
E Series E350 207.356 272.961
CLK cars CLK280 209.354 272.940
CLK cars CLK350 209.356 272.960
CLS sports cars CLS350 219.356 272.964
CLS sports cars CLS300 219.354 272.943
SLK sports cars SLK280 171.454 272.942
SLK sports cars SLK350 171.456 272.963
S Series S350 221.56 272.965
S Series S4100 221.195 272.974
M Series ML350 164.186 272.967
M Series ML300 164.182 272.945
R Series R350 251.165 272.967
R Series R300 251.154 272.945
GLK cars GLK300 204.981 272.984
GLK cars GLK350 204.987 272.971
The cheapest way:
When you get the original ECU data, just use this renew cable to connect to Ktag to write to Mercedes ME9.7 ME 9.7 ECU. With this cable, you won’t need to open the ECU to write data anymore.
KTAG/KTM100 (to help write data)
Mercedes ME 9.7 ECU (for replacement)
Renew cable (to write data into the new ECU)
How to replace and program Me 9.7 with Ktag:
Step 1: disassemble the ECU from car
Step 2: read and save original ECU data with Ktag programmer