typically this is a leak at the lift pump fitting or a cracked hose between tank and lift pump.
It will eventually refuse to run if you don't find and fix the leak. If the lines from the pre-heater are clear of air, it's in the suction line from the tank somewhere. Peter _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
