Duoliner 2.2 diesel Auto

I find it difficult to believe that a spring loaded throttle cannot be modified with another spring! (This may be a liability issue when modifying the original vehicle design.) Have them show you the throttle spring so YOU can have it changed by a sympathetic mechanic.

The official fix may be to apply a lever to the stiff throttle so a longer travel is substituted for the overly stiff spring.

I am assuming that you are using hand control for accelerator. Since it is a mechanical device based on leverage, perhap they can modify the hand level or custom make it so you have more leverage power. Call up the manufacturer and discuss this with them.

My diesel pedal was very hard to depress when I purchased my car recently. Very hard. I purchased a can of silicone spray lubricant and applied some to the back of the accelerator pedal and it feels more like a gas engine pedal. On my car, the problem is not a spring on the pedal, but the fact that there is very little mechanical advantage from the pedal to the injection system. Although, I am willing to bet there is a way to get the cruise control to control the accelerator manually like the foot pedal would. However, that may be more difficult to figure out than just adding a better mechanical advantage to the hand controls. I looked at the site and it seems that the mechanical advantage could be adjusted on those controls. If not, then look at another manufacturer.

quoted text -

Yes, you are quite correct, they can be adjusted, but they are at the max at the moment. I've been using this type of control for the last

I've fired off an email to Mercedes UK for their help too.

Thanks to all who have helped.

Dare I say it, watch this space :-)