How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt
Matt, Mechanical Engineer
Category: Mercedes
Satisfied Customers: 21991
Experience:  BEng hons Mech engineering, in auto industry 22 years
12772297
Type Your Mercedes Question Here...
Matt is online now

I have a 2006 vito traveliner 115 cdi sometimes I go out to

Customer Question

I have a 2006 vito traveliner 115 cdi sometimes I go out to it from cold turn the key
nothing all dash lights all come on and don't dim when key is turned most of the time I just
walk away go back to it and it starts last Monday nothing. it started after over 2 hours,
last time I had this problem about 6 months ago it had a new ign switch about 4 years ago it had this problem a new fuse box was fitted both of these job was done by a main dealer, but they could not find the problem this time they had it for 2 1/2 days
Submitted: 2 years ago.
Category: Mercedes
Expert:  Matt replied 2 years ago.


Hello

If the car's not cranking then first check it can turned over by hand so double checking for any mechanical issues

If OK then check that the main battery cables are on tight and the terminals are clean and bright. Do the same for the engine / gearbox earth strap.
Then follow the main positive lead back to the engine and down to the starter motor, and check the connection at this end as well.

There should also be a small wire to the motor which should have 12V when you're turning the ignition switch to crank. If the 12V isn't there, check back along this wire for damage to the insulation or corroded connections

This 12V feed comes directly from the ignition switch so this may be faulty and need replacing

Check the resistance of the main positive lead that runs down to the motor as anything more than a few ohms and it should be replaced

Don't forget to try a jump start from another car / battery as its possible the battery is poor, if you have a voltmeter a healthy battery should read 12.7+V

also try substituting the battery for another as I've known a very flat battery to drag down the system voltage too far even with jump cables


one other thing to consider is that the immobiliser is faulty and preventing the starter from being enabled - however if the dash / ignition lights are on then this usually means that its off


If this is all OK then its possible the van needs a new starter motor

Expert:  Matt replied 2 years ago.
hi

do you still need help?