Diagnosing this kind of problem takes a little understanding of simple DC circuits, a meter, and patience. It sounds like your dealer is missing at least one of those. IMO, you have been ripped off.
If you want to do this DIY and stop writing checks I'm sure several here will advise. I would start by measuring the battery voltage AT THE POSTS with the car off. Maybe you just have a bad battery. Battery testing at FLAPS is free and easy. With a known good battery, what happens to the voltage at the posts when you connect the cables? There should be almost no voltage drop when you connect the cables but there will be some current draw if your car has computers that boot up when power is applied. What happens to the battery voltage (at the posts) when the glow plugs fire up and when you try to crank? If there is a small parasitic load draining the battery overnight you can locate it using an ammeter and pulling fuses until you find the offending circuit. By the way, it's a bitch to replace the whole key switch/interlock assembly but the electrical part is a separate piece that's not hard to remove/replace, at least if it's like 123s and 126s. Good luck. > -----Original Message----- > From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Patrick > Atuonah via Mercedes > Sent: Wednesday, January 16, 2019 2:26 PM > To: mercedes@okiebenz.com > Cc: obioz...@gmail.com > Subject: [MBZ] (no subject) > > The idiot lights comes on and goes off when engine is running and idling. > Once the battery is charged for a few minutes, the engine fires up. When key > is turned to off and engine stops, car won't start again because the battery > has no juice. > > Car is with the dealer who diagnosed ignition switch. Special ordered.. $700 > had me stumped.. > > Thanks to all who responded.. > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
