Sounds like a real cheap fix. Nice! ------------- Max Charleston SC
On Thu, Jan 23, 2020 at 4:38 PM Floyd Thursby via Mercedes < mercedes@okiebenz.com> wrote: > OK in a quick research this seems to be the issue but will need to get > the car to check and see: > > > http://www.peachparts.com/shopforum/diesel-discussion/351031-w210-glow-plug-issue-97-e300d.html > > Looks like if the connector is not connecting then the IP won't pump any > fuel, which is why the guy suspected the IP.. Damn wouldn't it be cool > if it is just a bad connector! > > --FT > > tjts1 <http://www.peachparts.com/shopforum/members/tjts1.html> tjts1 is > offline > Registered User > > Join Date: May 2009 > Location: The slums of Beverly Hills > Posts: 6,228 > > Quote: > Originally Posted by *treiberg* View Post > < > http://www.peachparts.com/shopforum/diesel-discussion/351031-w210-glow-plug-issue-97-e300d.html#post3383292> > > > Back to this issue again. Car has been running fine for several months, > with only a few times where light wouldn't come on, but usually if we > just waited an hour or two, we would finally get the glow plug light and > then car would fire up. But now I cannot get glow plug light on and > engine will not start without it. Here is a tally of what I have > investigated: > > -glow plug resistance appears to be fine, all in the 0.6 to 0.8 ohm range > -glow plug relay seems to be fine, at least I see it providing 12V to > output blades when I energize it, and you can hear relay click > -replaced the K40 relay > -problem appears to be worse when engine or ambient is hot > > The problem appears to be that the signal to energize the relay is not > working. I cannot consistently get 12v at the two input wires to the > glow plug relay. My understanding is that this starts with the ignition > switch, but it is also enabled by the temperature sensor located under > the manifold. I wonder if this sensor has gone bad...?? > > Also, I need to start the car to move it. So I figured if I just apply > 12V to the input side of the glow plug relay, then it will pass power to > the glow plugs and I will be able to start it after 10-15 seconds - sort > of bypassing the electronics that send the 12v. However, when I do this > the relay only pops on for 1-2 seconds and turns right back off again, > not nearly enough time to energize those plugs to allow me to start. Is > that relay somehow super smart and know that my 12v is different than > the one from the ECU? > > If anyone out there has some input, or can even provide a wiring diagram > for a 97 E210 E300D, that would really help. > > I went through this exact issue with my 97 a couple of weeks ago. First > of all trying to hot wire the GP relay is not going to work because this > GP relay is digitally controlled by the engine computer. Even if you > manage to hotwire it, the computer won't allow fuel to the IP if it > doesn't have clear communication with the GP relay. The GP relay has a > PIC16 micro controller in it. There is a small 2 wire (3 pin) plug on > the GP relay with a white and brown wire. Brown is ground and white is a > data line from the engine computer. Grab that plug and wiggle it a bit. > You'll see it has some play. The plug is poorly designed and > intermittently cuts the data signal between the engine computer and GP > relay. > > The solution is fairly simple. Solder your own wires to pins 1 and 2 of > the 3 pin plug on the GP relay and use standard off the shelf plugs to > securely plug it into the car's wiring harness (brown and white wires). > Leave everything else the same. You will also need to connect to the > OBD2 port and delete the stored code (P0380 i think). > > Heres an older thread where we discussed the issue and the fix. > GP relay help - 1997 E300 om606.912 > < > http://www.peachparts.com/shopforum/diesel-discussion/358272-gp-relay-help-1997-e300-om606-912-a-2.html > > > > My car went from intermittent no start to totally reliable starts after > this modification. MB issued a service bulletin about this very issue. > Quote: > SUBJECT: DEALER TECHNICAL BULLETIN 31/98 > > 31/98-1 RECALLS AND SERVICE CAMPAIGNS: WHEN REPAIRING ANY VEHICLE, > ALWAYS CHECK THE VEHICLE MASTER INQUIRY FOR OPEN CAMPAIGNS > > 31/98-3 GROUP 07 - ALL DIESELS AS OF MY 96 (210.020, 210.025): For > conditions of code P1482 (preglow control module) in engine ECU, in > addition to the tests outlined in Diagnostic Manual 1.1 and 1.2,*please > check the electrical line and connectors between the preglow control > module and the engine ECU (signal wire / ground and voltage supply) for > possible intermittent contact, open contact, short to ground and / or > power.* If all checks OK, replace preglow control module. These > additional tests are necessary to obtain a more precise definition of > code P1482. In case of warranty, please use Damage Code according to > identified problem. > H. Polz, Service Engineering > HPdg 12-18-98 > > > On 1/22/20 4:53 PM, Buggered Benzmail wrote: > > Hmmmm I’ve got the smashed $500E300... do some swap. don’t like white > > much but it looks half nice. $500 would be more like it... > > > > https://www.facebook.com/marketplace/item/172589444114706/ > > > > 1200$ > > > > Needs injection pump or pump rebuild > > > > Ran and drove perfect > > > > Drivetrain good for 1million miles diesel > > > > > > --FT > > Sent from iPhone > > -- > --FT > > _______________________________________ > 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
