Here is a simple trick to fool the boost sensor a little. It does make the car more lively as the boost is slightly increased.

It started with a 10K resistor, then an 11K and now I have a 12K in, I'll stop there as I think its enough.
I tried a 9K but I will not recommended as not much gain.

The 10K should be the start, then this is up to you how far you want to go.

how to do it:
You just need to cut in half the blue/ red wire from the sensor ( as shown in the pictures)and connect the resistor to each ends.
I have attached those red clips fasteners( I have no idea how they are called) as it was easier to test different resistors and also the cable can be re-attach as normal easily, just take the resistor away and clip back the cable.

I have traced the cable under the box, its tidier, but this can be done at the sensor as well. Just make sure you got the right wire.

Attached Thumbnails

       

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E300TD year 2000. RUSTY SOLD
cost a fortune to maintain on the road
but run well on WVO
Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long?
Third lasted a month then went away...
Fourth now... Corroded too...