311 cdi will not start on key

[engineman]

311 cdi will not start on key also making no smoke on cranking out of exhaust but will go and run perfectly with a tow start ?never had this before anyone any ideas .whats happening differently when were towing it? cannot understand regards

 

[panason1c]

311 cdi will not start on key also making no smoke on cranking out of exhaust but will go and run perfectly with a tow start ?never had this before anyone any ideas .whats happening differently when were towing it? cannot understand regards

Check out this thread, similar problem with a solution at the end.....

http://forums.mercedesclub.org.uk/showthread.php?p=231191#post231191