The next question is where is the hazard relay ??

The painful way to do this is to take out the hazard relay switch and find the colours of the two leads on the back. Then go searching for a relay with these leads .The next less painful way is to study the wiring diagram to save removing the switch .The hazard switch has two wires one green/white and one purple / green. So then where is the relay ? Below the rev counter and just behind the dashboard are two small oblong aluminium relays pushed into small steel holders. If you pull out the left hand one it should have a two prong relay with the colour coded leads as mentioned above .That is the way on my car but other cars may have the relays mounted the other way round .Pull both leads off and fit the new relay.



Once again, thank you to Dan Mitchell owner of 'PPP' (Pre Production prototype MB)