What kind of valve actuator does a sprinter have?
This electrical valve actuator is popularly at fault with the Mercedes Sprinter model and your dealer will have sold hundreds of this item over time. It has a single two wire electrical plug connected to it and three rubber pipes; in some cases its pipe locations are even marked: IN – OUT – VENT.
How to tell if a Mercedes Sprinter has a fault?
If no control voltage is present look for a break in the wiring from the valve to the ECU. Trace back the wires to the ECU connector and prove continuity exists from the ECU connector to the valve. Pin outs and wire colours are given in the included diagrams.
What to do if your Mercedes Sprinter has a split pipe?
Check vac supply to this device observing and rectifying any split or leaking pipework. Once good vacuum supply has been determined, with the ignition off (no power to the valve and no vacuum present) the route of vacuum should be blocked by the valve to the turbo actuator.
What should I do if my Mercedes Sprinter has no vacuum?
Once good vacuum supply has been determined, with the ignition off (no power to the valve and no vacuum present) the route of vacuum should be blocked by the valve to the turbo actuator.
Why is my Mercedes Sprinter not shifting properly?
The above Mercedes Sprinter problem can be accompanied with another interlinked shifter problem as well. In order to shift correctly, the transmission requires the correct engine torque value. If the power returns on restarting the engine, it can be presumed, that there is a problem with the electronics.
Why is my MISC sprinter losing so much power?
Had a major fuel injector leak for quite some time (now fixed) but the dealer has told me numerous times that that fuel leak caused big problems in the topend of the motor. Motor is losing power (even at full throttle). Services are all up to date – mind you – so it’s not fuel filter.
What should I do if my Mercedes Sprinter has a leak?
In case a leak has developed at the fuel suction pipe, air can enter the system and air lock the pump. Hence the fuel should be pumped out using a hand pump in the engine bay at the filter housing. Next each injector pipe should be loosened while cranking the engine, while a helper operates the primer.
What should the cranking pressure be on a sprinter?
The fuel rail must provide an absolute minimum cranking pressure of between 250 and 300 Bar, any less and the ECU will not allow the engine to start.
What is the problem with the Mercedes Sprinter?
Mercedes Sprinter CDI Turbo Actuator problem This is a very common problem for all Mercedes Sprinter CDI’s built after 2006, the fault causes the engine to lose power intermittently causing the engine to run in limp mode.
How long does it take to rebuild sprinter Turbo actuator?
We can test and rebuild your Sprinter turbo actuator within 1-2 working days and ship it back to you without the need for coding or a brand new expensive turbo. Using our bespoke testing rigs we are able to test these actuators under real-world load and driving conditions.
Where is the charge actuator located on a Mercedes Sprinter?
The charge actuator resides bolted to the turbo body on an extended bracket, its push rod connects to a small lever that enters into the turbo body casting, moving a small lever shaped rather like a dog-bone. This lever engages in an annular ring that in turn interlaces with a set of similar levers attached to each variable vane.
How does the fuel pressure solenoid work on a sprinter?
The solenoid controls and maintains the rail pressure as commanded by the ECM. In a DE-energized state, the fuel pressure solenoid is held closed by spring force, like a relief valve. During starting the fuel pressure solenoid is held closed by magnetic force to allow enough pressure for starting.
How does recirculation work on a Mercedes Sprinter?
This in turn lights a red light in the centre of the control knob to indicate recirculation is selected. Pushing the control again will turn it off. This is a very simple system to troubleshoot and it should be possible to get it working or at least identify the problem quite quickly when you know where to look.
Where is the vacuum in a Mercedes Sprinter?
The vacuum origin is supplied from the ‘T’ piece connector on the brake servo vac pipe junction that also feeds the turbo actuator control valve. The brown hard vac pipe follows up along the top of the bulkhead from left to right terminating at the top spigot of the three port heater box flap control valve.
What should I do if my Mercedes Sprinter heater is not working?
If all seems ok but there is no movement of the flap, then temporarily connect the supply and actuator pipe together – the actuator should retract and close the flap – if it does not the solenoid control valve is probably faulty and requires replacement.