[ThomasML320]

Hello everyone
i have some questions and i hope i find answers here
first of all i say that i love my ML320 and thats why i want to spend moeny on that exact car and not buy newer one...
so the first question is how difficult or if is even possible to enlarge engine displacement from native 3200 cc to 3700 cc as happends on facelifted models M350,
the other question is if is possible to mount 7g tronic gearbox instead of an 5g,
have anybody any other good idea how to "update" ml320 to run more powerfull, comfortable, enjoyable?

Thank you all

 

[art_arev]

Buy an ML350 or even better an ML500

 

[pte]

Performance tuning ECU

Beware , there are tuners & there are hacks. One of the best tuners, are Kleemann out of Denmark. Kleemann - Tuning for the 32 AMG/320 (M112) V6 engines.. They have a U.S.A. office in Talk to Cory at 719 - 473 - 6441
Kleemann - Tuning and wheels for Mercedes-Benz and AMG cars! Cheers _PTEngineering

 

[4wd430]

For more powerful and enjoyable, I would look into getting a Magnaflow exhaust sytem (or some other reputable brand), K&N drop in filters (just don't over oil them) and have your ECU tuned by a tuning company (I have heard good things about Logic Lab Tuning) but only after doing exhaust and intake mods. You may also want to look into a sprint booster device to add more of a fun factor to the driving experience.

Hello everyone
i have some questions and i hope i find answers here
first of all i say that i love my ML320 and thats why i want to spend moeny on that exact car and not buy newer one...
so the first question is how difficult or if is even possible to enlarge engine displacement from native 3200 cc to 3700 cc as happends on facelifted models M350,
the other question is if is possible to mount 7g tronic gearbox instead of an 5g,
have anybody any other good idea how to "update" ml320 to run more powerfull, comfortable, enjoyable?

Thank you all

 

[Mars478]

To answer your 2 questions, in short, no you cannot bore out the engine to 3.7, it would be much cheaper to just get a 3.7 engine and drop it in along with all the ECU and other electronics you would need, and I REALLY doubt you could make a 7G tronic work without extensive electronic hacks, and even then it would be weird because the engine wouldn't be optimized for the 7 speed shift patterns. It is not worthwhile to put money into these cars to make them perform better, they should be enjoyed as they are performance wise, because no matter what you do, it will still be 4500lb SUV. If you want performance in the W163 chassis look into getting an ML55.

 

[m1943]

If it's not about money, then the motor could be tuned probably to the 3.6 AMG, as they used the same old m112 block, such as the C36 AMG car. But that's just me guessing. What would be easier is get a used kompressor (supercharger) and try to marry that up to the 3.2 engine, I once saw a kompressor on eBay from an m112 motor I think and it was several hundred dollars. I presume you live in a country where manual labor is not as expensive as it is in the U.S., or you know how to work on engines yourself.
The 7G (722.9?) trans is not that good, I don't know why you would want to switch to that?! MB still uses the 722.6 in the more powerful cars as it will hold more torque. When the w164s came out, they all developed problems with the 7G, the good old 5-speed 722.6 is more reliable and easier to overhaul and is more practical. Someone correct me if I am wrong.
Plus as stated above, you can do chip tuning and fiddle with the exhaust and air intake and all. There are performance exhasut manifolds you can get that are pretty awesome. If you take the motor appart, there is the sludge build up that you can shed and polish the intakes and what not. So there is lots you can do without going through with the boring out adventure.

 

[4wd430]

There was a member who put an AMG Kompressor (superchareger) from a C32AMG on the 320

If it's not about money, then the motor could be tuned probably to the 3.6 AMG, as they used the same old m112 block, such as the C36 AMG car. But that's just me guessing. What would be easier is get a used kompressor (supercharger) and try to marry that up to the 3.2 engine, I once saw a kompressor on eBay from an m112 motor I think and it was several hundred dollars. I presume you live in a country where manual labor is not as expensive as it is in the U.S., or you know how to work on engines yourself.
The 7G (722.9?) trans is not that good, I don't know why you would want to switch to that?! MB still uses the 722.7 in the more powerful cars as it will hold more torque. When the w164s came out, they all developed problems with the 7G, the good old 5-speed 722.7 is more reliable and easier to overhaul and is more practical. Someone correct me if I am wrong.
Plus as stated above, you can do chip tuning and fiddle with the exhaust and air intake and all. There are performance exhasut manifolds you can get that are pretty awesome. If you take the motor appart, there is the sludge build up that you can shed and polish the intakes and what not. So there is lots you can do without going through with the boring out adventure.