netcoolz

Dear all i have two question i want some help from you

i have clk240 2005 :

1- if i change the engine from 240 to 320 do i need to change other part with it and does that harm the gearbox ?

2- my car very slow when it go from 0 and sometime it go off when i stop it , i change the airmas and all important parts in engine but it still the same , but when i remove the air mass cable the car become very nice and every thing going fine , any one know the reason

thanks for u all in advance

samaritrey

Honestly engine swaps on a MB tend to get expensive so make sure to do your research first. You will need someone who knows what they are doing with a star computer and may need a new ECU (not really sure if you can take a 240ecu and update it to the 320 or not)
The transmission will be fine and since it is the same basic engine should bolt up and be fairly simple.
To be honest before drooping a new engine i would figure out why it cuts out as you don't want to put a new engine in and have the same issue.

netcoolz

hi samaritrey and thx for your quik reply


the change alot of part in my 240 engine and they check it in computer and they canot find any errors , after that they said car will be better than b4 and will not cut of again , when i drive it in same day it cut off many time so anthor garage advice me to disconnect the air mass i do that and the car now is fine but i dont know how or why

samaritrey

If it runs better with the MAF unplugged it is probably a bad MAF. When the car can't detect the MAF it falls back on to default values so it will run ok. Get a new one and make sure it is no an aftermarket one as they are usually junk. Also make sure it is not the VW one as it looks the same and will fit but won't work properly.