Dear Sir

I was informed by my mechanic that my ML 270 ( year 2002 model ) has lost compression. The only way now is to replace a new engine because there is no piston replacement kit for order. Plesae adive.

KS

 

DeaR Sir

I got these answer from them;

>
> During the compression test done recently, the compression pressure
> wear value are all at the minimum wear limit value of between 17 -
> 19 bar. This will increase the blow-by pressure due to some slack of
> the piston ring. Thus, there will be more blow-by gas escaping from
> the top breather hose. The top breather hose is originally fitted to
> the turbocharger air intake hose. The turbocharger unit is cooled
> and lubricated by the engine oil.

2)

Sorry for the delay in giving you the test result. Please find attached the compression test recording chart (refer fig 1). The result shows cyl. 1: 17.0 bar, cyl. 2: 19.0 bar, cyl. 3: 18.0 bar, cyl. 4: 17.5 bar, cyl. 5: 17.5 bar. Please also find attached the MB standard compression pressure figures. Based on your actual engine compression figures, the normal standard compression tolerance value should be between 29 to 35 bar (refer fig 2). The compression pressure wear limit value should be around 18 bar. Since your engine actual value are between 17 - 19 bar, these figures are at minimum wear limit value.


So, what should I do ??

Regards