suggs Posted September 18, 2007 Share Posted September 18, 2007 200tdi ive got no diff lock light, checked bulb and its fine. had a look at the switch on the transfer box and theres 12v going into it but only about half a volt coming out. dosent change when i engage or disengage the lock. just got this 90 so i cant really be 100% sure if its working just by driving it. low and high works fine. any ideas what i could check.. cheers Quote Link to comment Share on other sites More sharing options...
Ivan Posted September 18, 2007 Share Posted September 18, 2007 Try a new diff lock switch. If it's only got 1/2v coming out then it's not working. Either that or it's not going into diff lock. Ivan Quote Link to comment Share on other sites More sharing options...
Gromit Posted September 18, 2007 Share Posted September 18, 2007 To see if the diff lock is actually working, when you engage it, you should notice that the steering/handling is noticeably different in that it doesn't like turning on hard surfaces. Only do a short test, as locking the diff on hard ground is not too nice on the transmission. Otherwise you can jack up one front wheel. It should turn freely with the diff out, and not turn when the diff is locked. Quote Link to comment Share on other sites More sharing options...
suggs Posted September 18, 2007 Author Share Posted September 18, 2007 steering does feel a bit differant when locks on feels a bit heavy, but i jacked the drivers side front wheel up and it locks when engaged but also stayed locked when i took it out of diff lock.. Quote Link to comment Share on other sites More sharing options...
Ivan Posted September 18, 2007 Share Posted September 18, 2007 Thats usually because they sometimes need a bit of a run or gear change to disengage the difflock. If it is going into difflock then I would look at the difflock switch. Rgds Ivan Quote Link to comment Share on other sites More sharing options...
Gromit Posted September 18, 2007 Share Posted September 18, 2007 Thats usually because they sometimes need a bit of a run or gear change to disengage the difflock. That wouldn't be the case if one wheel was raised, as there'd be no transmission wind to hold the diff in the locked position. If you just spin the raised wheel back and forth, it should unlock. To your original question, it sounds like the lock is ok and it's the switch that's at fault. Quote Link to comment Share on other sites More sharing options...
suggs Posted September 18, 2007 Author Share Posted September 18, 2007 yep its the switch, i just realised i left it in gear when i jacked it up "DOH" justdone it again and it locks and unlocks fine. i just need a new switch.. cheers for the advice Quote Link to comment Share on other sites More sharing options...
Gromit Posted September 18, 2007 Share Posted September 18, 2007 when i took it out of lock i did drive back and forward a few times to release it before jacking back up, wondering if its stuck on now!!!! If one front wheel raised won't turn, then is stuck on. The lever might be partially seized/mucky and preventing it moving to the full extent of its travel to unlock. Quote Link to comment Share on other sites More sharing options...
suggs Posted September 18, 2007 Author Share Posted September 18, 2007 lol im a muppet, see above post .. cheers Quote Link to comment Share on other sites More sharing options...
Gromit Posted September 18, 2007 Share Posted September 18, 2007 lol im a muppet, see above post .. Been there, done that; I'm a fully paid up member of the muppets Quote Link to comment Share on other sites More sharing options...
Escape Posted September 18, 2007 Share Posted September 18, 2007 Been there, done that; I'm a fully paid up member of the muppets You're in good company. Quote Link to comment Share on other sites More sharing options...
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