'82 300d won't start, help please!

Mercedes Benz Forum Mercedes Classifieds Photo Gallery Member List Search Mercedes History Sponsors Contact
Mercedes Benz News Calendars Forum FAQ Mercedes Recalls TSBs Timeslips Register Login

'82 300d won't start, help please!

Printable Version

Mercedes >> Mercedes Benz Models >> Diesel Discussions >> '82 300d won't start, help please!

Page: [1]

Message

<< Older Topic Newer Topic >>

'82 300d won't start, help please! - 2/7/2006 8:41:18 AM

angelbay

Posts: 28
Joined: 11/8/2005
Status: offline

Hello, just recently, after several days of slower starts, according to the wife, her car now won't start. I verified this, let it crank over for at least 45 seconds and no fire. I know it is either air or fuel, which implies fuel. I don't have a factory manual on engine yet. Any simplified fuel system drawings available? Any troubleshooting tips? I have used some recommended fuel system additive a couple of times the last few months and changed both fuel filters once and the primary twice more, usually due to symptoms at higher rpms. Isn't there a pump prior to the injector pump? The glow plug light works and the relay clicks many seconds later, I always wait for the relay click. What can I check and how please, thanks so much, Steve

Post #: 1

RE: '82 300d won't start, help please! - 2/13/2006 11:14:04 PM

banditele

Posts: 2
Joined: 2/13/2006
Status: offline

have you checked the glow plugs? mine did the same. It was a glow plug that was bad.
good luck
Jay
1979300TD

(in reply to angelbay)

Post #: 2

RE: '82 300d won't start, help please! - 2/21/2006 4:10:39 PM

angelbay

Posts: 28
Joined: 11/8/2005
Status: offline

After reading more posts, via search, and one post to my original, I replaced all 5 glow plugs. A bit of a problem to get fingers in, luckily did not drop any wire nuts. Took a couple of hours due to close quarters, but started right up! I checked resistance, some were open and some shorted. For $10 each, I just replaced them all. Just FYI, , I think by looking at my maintenance history, quite extensive records with my car, they may have been replaced once before and not sure if all replaced then, and that was 24 years and 240,000 miles. skp

(in reply to angelbay)

Post #: 3

RE: '82 300d won't start, help please! - 6/30/2006 11:39:49 PM

duxdevil

Posts: 185
Joined: 2/20/2006
Status: offline

try this:

remove the 5 injectors form the top of each of the cyldinders. then purge/prime the engine until diesel fuel comes out of the top of each of them. then put them all back on. this makes sure that there is no air in the engine, causing it to not fire. Also, if diesel wont come out hte top, then youve got a fuel supply issue.

_____________________________

TRavis

Level 3 Wilderness First Responder
ADL Certified Peer Facilitator

duxdevil1@hotmail.com

87 190dt (RIP@116,000) EBAY
91 Range Rover County LWB SOLD (178,000) EBAY
93 Ford Taurus SOLD (164,000)
84 300d turbo (184,000)- daily

(in reply to angelbay)

Post #: 4

RE: '82 300d won't start, help please! - 7/7/2006 9:57:24 PM

81 300 CD

Posts: 100
Joined: 3/23/2006
Status: offline

what is the relay click? do all mercedes diesels do this? i just wait for the light to go out, then crank it over. wait to long after the light goes out, no start. dont wait for the light to go out, no start.

_____________________________

andyfairna

(in reply to duxdevil)

Post #: 5