Note: Refer to the precautions at the end of Section 1 before proceeding.

K-Jetronic system
Removal
1 Disconnect the battery earth lead.

2 Detach the electrical wiring multi-plug from the valve (see illustration).

9.2 Disconnecting the cold start valve wiring multi-plug

3 Slowly unscrew and remove the fuel supply pipe banjo bolt. Take care on removal, as the system will be under pressure. Soak up fuel spillage with a cloth.

4 Unscrew and remove the two socket-head mounting bolts using an Allen key or Torx type key or socket bit on later models, and remove the valve.

Refitting
5 Refitting is a reversal of the removal procedure. Do not overtighten the banjo bolt or the washers may fracture (use a new one each side of the union).

6 On completion restart the engine and check for signs of fuel leakage.

KE-Jetronic system
Removal
7 Disconnect the battery earth lead.

8 Disconnect the wiring multi-plug from the valve which is located underneath the throttle housing (see illustration).

9.8 KE-Jetronic system cold start valve location

A Fuel pipe union B Retaining bolts

9 Slowly unscrew and remove the fuel supply pipe banjo union. Take care on removal, as the system will be under pressure. Soak up fuel spillage with a cloth.

10 Unscrew and remove the two Torx type mounting bolts using a Torx key or socket bit.

Remove the valve from under the throttle housing.

Refitting
11 Refitting is a reversal of removal. Do not overtighten the banjo bolt or the washers may fracture (use a new one each side of the union).

12 On completion restart the engine and check for leaks.