atego

[mercman111]

i still think that your problem is key/immobiliser related

 

[ategoman]

yes I do but weirdly it show no fault code !!

 

[mercman111]

ref

when i worked on them several years ago they did not show a fault if you tried to start with a key fault

 

[ategoman]

when i worked on them several years ago they did not show a fault if you tried to start with a key fault

ok thanks well that a new route to follow , how do I go about getting key rematched to ignition ?

 

[mercman111]

ok thanks well that a new route to follow , how do I go about getting key rematched to ignition ?

take into account that its been a long time since i last did one,as there were a fleet of them mercedes used to come to our premises

 

[Roxie]

Put the ignition on if dash display shows CODE then key immobiliser has a problem if dash does not show CODE then the key is recognised and authorised to start the engine.
If you get FR3130 then the air filter or coolant level sensors are faulty or a wire is broken to either.
The starter motor has a terminal 50 relay on top of it the wire that triggers it comes around the back of the engine from the PLD control unit. This wire and this relay suffer from corrosion.
The cab lock on a day cab is locked into the right rear cab suspension unit and the release for this is behind the drivers seat. The lever in the step is to release the cab stay to lower it.
I cant for some reason remember where the cab tilt safety catch is released.

 

[ategoman]

Put the ignition on if dash display shows CODE then key immobiliser has a problem if dash does not show CODE then the key is recognised and authorised to start the engine.
If you get FR3130 then the air filter or coolant level sensors are faulty or a wire is broken to either.
The starter motor has a terminal 50 relay on top of it the wire that triggers it comes around the back of the engine from the PLD control unit. This wire and this relay suffer from corrosion.
The cab lock on a day cab is locked into the right rear cab suspension unit and the release for this is behind the drivers seat. The lever in the step is to release the cab stay to lower it.
I cant for some reason remember where the cab tilt safety catch is released.

that's brilliant info thankyou I will try those things at the weekend If I can get that darn cab up , it pops when you pull lever will raise about a foot then refuse to go anymore I just cannot get it to tilt , the dash does not show code so hopefully it's not the key , thankyou again sorry to be a pain to you all but it's slowly driving me mad

 

[ategoman]

Put the ignition on if dash display shows CODE then key immobiliser has a problem if dash does not show CODE then the key is recognised and authorised to start the engine.
If you get FR3130 then the air filter or coolant level sensors are faulty or a wire is broken to either.
The starter motor has a terminal 50 relay on top of it the wire that triggers it comes around the back of the engine from the PLD control unit. This wire and this relay suffer from corrosion.
The cab lock on a day cab is locked into the right rear cab suspension unit and the release for this is behind the drivers seat. The lever in the step is to release the cab stay to lower it.
I cant for some reason remember where the cab tilt safety catch is released.

ok update , finally got time off work and got cab up today it was the secondary latch that was holding it , ignition still showing no code , engine cranks if you bridge the starter with a spanner but won't start , will crank for around 5 seconds each time before throwing starter out , wiring around engine seems ok and no corrosion , nothing happens if you use start stop buttons on side of engine , so I am still stuck a fuses ok relays well there sealed so not sure , anymore info will be very much appreciated

 

[ategoman]

1997 Atego on going starting issues had today come up with code MR9964 checking codes it says no transponder code to terminal 50, any ideas?

 

[davidsl500]

1997 Atego on going starting issues had today come up with code MR9964 checking codes it says no transponder code to terminal 50, any ideas?

This thread talks about terminal 50 towards the end if its any use?

http://forums.mercedesclub.org.uk/archive/index.php/t-95037.html

 

[Roxie]

This fault code has probably come up because you have bypassed the transponder by bridging the starter motor.
the control unit has to energise the starter because it also pumps the fuel in via the unit pumps.
Have you tested the terminal 50 wire at the relay above the starter solenoid to see if you have a terminal 50 feed from the control unit?

 

[ategoman]

This fault code has probably come up because you have bypassed the transponder by bridging the starter motor.
the control unit has to energise the starter because it also pumps the fuel in via the unit pumps.
Have you tested the terminal 50 wire at the relay above the starter solenoid to see if you have a terminal 50 feed from the control unit?

Roxie you have been so helpful and I prob do your head in , had a look today between showers , there is no terminals above the starter solenoid just the turbo block and head !!!!

 

[Roxie]

The big one is the normal starter solenoid the lower small one is the relay that I refer to at T50 relay.
This corrodes out both internally and externally.
Hope this helps

 

[ategoman]

Ok have put tester to terminal 50 no voltage when starter turned to start position put a live feed to terminal on 50 engine spins a treat but no start so I guess no ECU feed letting diesel through , but still no fault codes showing so I am guessing it's a key isolator chip fault or ECU I am now going to pour diesel over it n torch it , ha any more ideas sir
Regards Buff

 

[Roxie]

I can't think of anything that would cause this without showing a fault other than the PLD control unit itself. There are also wires under the engine that can chaff and corrode inside the conduit that could cause power loss at the PLD.
So it sounds like you need a good specialist to have a look and check the wiring and perhaps a Star diagnosis.

 

[svirrelli]

hello

mercedes benz atego mechanism for lifting weights not working

i think it is a electrical problem