Date registered: Jun 2004
Mentioned: 1 Post(s)
Quoted: 7 Post(s)
Yes it can .It's a huge job though. i have done it last year for a customer who wanted a W108 dash instead of the W111's thermometer speedo.
To fit the dash you must first remove the windscreen and the W111's dash pad and speedo and glove box. . Then remove the steering column and unplug the wiring loom to get it out of the way. Remove the handbrake .
Disconnect the heater levers from the cables .
On each side of the cowl ,the dash is welded to the A pillar with a short weld. Cut this off then drill out each spot weld across the base of the windscreen aperture .
Disconnect thew two air vents on either side of the dash . You can do this quicker by simply cutting through the top of the dash from one windscreen demister vent to the next.
Next locate a complete W108 dash pressing ( find a complete car,it's easierr and cheaper ) .
Do the same jobs to disconnect the dash board as you have done to the W111.
Cut 50 mm from each end of the steel dash frame and mount it in place. Before welding it in,replace the steering column,it uses the same bolt locations as the w111 so it will serve as jig.
Sight the dash to get it level and weld the dash to the A pillars on each side. Adjust the shape of the W108 demister event holes and weld it in at the top. Fit the W108 dash pad and cut the ends to suit the new length ,then send it off to a dash board restoration firm to get it recovered . This means that any crappy old dash pad can be used so there is no need to stress looking for a perfect one.
The Dash wood needs to be altered at each end and little end padding bits need to made to suit the curved shape of the W111 A pillars.
reassemble the dash heater controls using the W111 levers and fan switch with long cables and fit the dash instrument cluster ,hooking the temp guage up to the engine and modify the plug for the W111 speedo to fit the W108 round plug.
They use the same color wires so it's quite easy to do this.
And there you have it .
Pics are of a W111 sedan made into a convertible with a W108 dash fitted I did for a customer last year.