START ERROR ON DASH DISPLAY?

At williamsdiesels.com we can now offer you a repair to the wsp, simply remove the wsp and ecu and send them both where we shall attempt to rewrite the wsp. Please call to arrange carriage. Our costs for this service if successful shall be £175. Also we will offer a postage only fee if unsucsessful. Our mobile service is also available to replace the wsp, if needed, £275 UK wide.

www.williamsdiesels.com
March 2010

Sounds like a wsp unit, i specialise in reprograming wsp units to the cdi, i travel all over the uk and have the Mercedes Star to offer key coding on site aswel. Either way, a quick test on the Star will tell you what is nescessary to correct the fault, but 95% are wsps.
williamsdiesels.com is where you will find all my details

Deano
February 2009

it is a problem with immobiliser check the chip is still in key failing that you will need star diagnosis to confirm fault common fault is wsp ecu failing can only be bought from dealer and you have to have keys programmed with star machine

mat
February 2009