13-01-2014, 10:04 AM
Will be a Siemens SID803A if it's a 16v - doesn't have a lift pump - fuel is lifted by the internal gear pump in the commonrail pump.
That "bladder" is the priming pump, just like an XUD.
Sounds to me like it's run out of fuel or can't get fuel - it's probably because it can't build enough pressure in the rail to start. Give the bulb a prime and see if you can feel fuel in it....
Especially if he's had out the fuel pot under the boot floor - he's probably compounded the issue by doing that and assuming it'll now prime itself...
That "bladder" is the priming pump, just like an XUD.
Sounds to me like it's run out of fuel or can't get fuel - it's probably because it can't build enough pressure in the rail to start. Give the bulb a prime and see if you can feel fuel in it....
Especially if he's had out the fuel pot under the boot floor - he's probably compounded the issue by doing that and assuming it'll now prime itself...
