Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-01-2002, 12:00 PM
Registered User
 
Join Date: Jun 2000
Location: Saugus, CA USA
Posts: 1,989
Spark plug life expectancy

My M103 has been stumbling a bit when starting cold. It's been about 30,000 miles since I changed them for other reasons (valve guide seal change) and I got to thinking about the spark plugs. So my question is, is it about time to R&R them?
__________________
5 speed '91 190E 2.6 320,000 mi. (new car, fast, smooth as silk six, couldn't find any more Peugeots)
5 speed '85 Peugeot 505 2.5l Turbo Diesel 266,000 mi. (old car, fast for a diesel, had 2 others)
5 speed '01 Jetta V6 (new wifes car, pretty quick)
5 speed '85 Peugeot 505 2.2l Turbo Gas 197,000 mi. (wifes car, faster, sadly gone just short of 200k )
5 speed '83 Yamaha 750 Maxim 14,000 mi. (fastest)
0 speed 4' x 8' 1800 lb Harbor Freight utility trailer (only as fast as what's pulling it)
Reply With Quote
  #2  
Old 03-01-2002, 12:38 PM
Michael's Avatar
Veteran
 
Join Date: Jul 1999
Location: CT, USA
Posts: 2,699
Cap & Rotor? And if they're not that old but look bad, then your coil?

Maybe I'm paranoid, but I just went through this and shortly thereafter my coil failed, stranding me ('88 300TE, 177k miles, maintained fastidiously)
__________________
"If everything seems under control, you're simply not going fast enough" --Mario Andretti

Michael
1995 E500 street car
1986 Porsche 944 Turbo S track car
Reply With Quote
  #3  
Old 03-01-2002, 05:35 PM
Registered User
 
Join Date: Jun 2000
Location: Saugus, CA USA
Posts: 1,989
Anybody?

So what is the recommended or suggested replacement interval for spark plugs.
Reply With Quote
  #4  
Old 03-01-2002, 06:52 PM
Benzman500
Guest
 
Posts: n/a
With plat. Bosch says 100k I think, but I do mine with every fuel filter change about 15-20k.
Reply With Quote
  #5  
Old 03-01-2002, 07:12 PM
Michael's Avatar
Veteran
 
Join Date: Jul 1999
Location: CT, USA
Posts: 2,699
60k is the interval in your Owner's Manual. I stick to that interval.
__________________
"If everything seems under control, you're simply not going fast enough" --Mario Andretti

Michael
1995 E500 street car
1986 Porsche 944 Turbo S track car
Reply With Quote
  #6  
Old 03-01-2002, 08:02 PM
Mike Murrell's Avatar
Registered User
 
Join Date: Feb 2000
Posts: 2,351
Jim:

The Bosch H9DC/H9DCO plugs that your engine uses are relatively inexpensive. I change mine annually, irregardless of mileage. Plug condition is somewhat an indicator of what's going on inside your engine. An annual change gives you an opportunity to see how things are.
__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"
Reply With Quote
  #7  
Old 03-01-2002, 11:58 PM
Registered User
 
Join Date: Mar 2001
Posts: 326
I replace mine every 15k miles. The plugs start to show significant wear around 30k miles. I would recommend no more than 30k on a set of plugs.
__________________
Scott Diener
89 300E
93 300E
92 Volvo 740 Wagon aka "Mutt mover"
Reply With Quote
  #8  
Old 03-02-2002, 02:24 AM
ymsin's Avatar
Driver, Mercedes-Benz
 
Join Date: Feb 2001
Location: Malaysia
Posts: 1,645
I agree with Mike that the plugs are relatively inexpensive. I change them every alternate service.
__________________
... Kerry

126 tailed by a 203, 129 leading the pack.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Spark Plug Replacement - ML320 ard ML, GL, G-Wagen, R-Class, Unimog, Sprinter 18 11-30-2008 07:53 PM
300E spark plug wires fish4stripers Tech Help 8 06-25-2004 09:09 AM
resistance for silicone spark plug wires? RKreutzer Tech Help 5 04-13-2003 05:58 PM
Using regular pliers to remove spark plug wires ako Tech Help 3 03-21-2003 08:33 AM
Spark plug problem?? MikeTangas Tech Help 3 03-12-2001 12:26 AM



All times are GMT -4. The time now is 02:29 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page