1994 E320 where is the upshift delay switch located?? code 26
 

looking for the upshift delay switch on my 1994 mb e320.. car is giving code 26. any help would be greatly appreciated! thanks

The upshift delay valve is on the side of the transmission.

There is also a switch over valve mounted on the fire wall behind the brake master cylinder.

99% of the time this code comes up because the upshift delay valve no longer holds vacum.

You can check this by pulling the green hose off of the switch over valve, and pulling vacum with a mighty vac. If there is a vacum leak, the pressure will bleed off immediately.

thanks suginami.. ill give it a try today and pull a vac on it. ;)