Advice on Trigger and Jectors purchase

Dear Friends, I am currently working on a 1971 MB280/3.5L and need to replace the Trigger and the Jectors. Please advice me with a reliable source that can supply those items for me, very much appreciate your help in advance.

Hi Shu Pui,

welcome to this forum. Unfortunately Bosch does not produce these parts any more. To find the yellow injectors as new, is difficult. Do you have the wrong injectors or are they just dirty? If dirty, they can be cleaned. If wrong, I can offer you some where I replaced Porsche 914's 90° fuel hose to straight fuel hose. They have the same flow rate and are new. Regarding trigger contacts you have 3 options. You can use nordfisch's measuring gauge for readjustment, you can use althase's replacement CAMs or you can replace your trigger contacts. As I assume you have the version with 5 pin connector and not the one with cable and 6 pin connector (with one contact being blind), the last new trigger contact is with me again. However, Bosch also offers repair sets for 400+ € . But those have to be mounted straight. I once had a case where someone did not insert them properly.

To sum up: Solution of both issues depends on your mechanical skills and whether injectors can be cleaned or must be replaced.