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#1
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when to change spark plugs
I have to admit, I've never changed spark plugs since I've always had a diesel.
so, how do I inspect them for wear and gap them, etc. Plus where can I buy non resistor type locally. The E320 just hit 90k so the 90k service is going down under my hands. It wont all get done today but it will all be addressed before the next tear off page in the service booklet. Doing the oil today as well. I think I have a blackstone labs thing to send it out in for ha ha's |
#2
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I think plugs are generally changed every 15,000km/9,000 miles.
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Smoke Silver 1994 E220 Coupe Automatic 0 kilometers 6 September 1994 100,635 kilometers - 6 September 2010 |
#3
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At your interval, replacement is your only option, don't bother with trying to re-gap them. They should be changed every 15k. You want Bosch H9DC0...Try your local dealer as most online stores now only carry the resistor HR9DC0.
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2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#4
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Every 30K with copper core plugs.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#5
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__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#6
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I always use platinum plugs,and change every 100,000 miles.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
#7
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That is what I am following with the 300E.....so I have about 21k to go on the current set.
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#8
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ill try autozone for chits and giggle since I need to go dump oil after dinner.
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#9
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...they won'y have them. Dealer or ebay.
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#10
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__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#11
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Is the Bosch F8DC4 a Non-resistor plug? If so, what is the difference of it between the H9DC0?
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#12
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Quote:
I am currently running Denso T20EP-U in my m103s. NGK BP5ES's in my m116. F8DC4 F=14mm thread (5/8" hex) 8= Heat Range D=Thread Reach 3/4" Regular Electrode C=Copper Core Center Electrode 4=Special Shell or Electrodes H9DC0 H=14mm thread diameter Tapered Seat 9 = Heat Range D=Thread Reach 3/4" Regular Electrode C=Copper Core Center Electrode 0=Special Shell or Electrodes Spark Plug Decoders: Bosch: http://www.not2fast.com/ignition/bosch_spark_plugs_short.gif NGK: http://www.not2fast.com/ignition/ngk_spark_plugs.jpg Denso: http://www.not2fast.com/ignition/denso_spark_plugs.jpg Champion: http://www.not2fast.com/ignition/champion_spark_plugs.jpg
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#13
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So the F8DC4 run one notch "colder" than the H9DC0's...Under what conditions are colder/hotter sparks favorable?
Also, can you explain the last # in the part number (Special Shell or Electrode)? Just trying to understand which would be best for me as it looks like this spark plug has a lot of sources compared to the H9DC0 I switched from the H9DCO's which were fouled to new Denso non resistor and I cannot be 100% sure, but I feel like it seems to be idling a tad rougher...That is why I want to get a spare set of Bosch plugs to test it out as the old ones I had were fouled up from past leaking stem seals.
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2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#14
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Quote:
http://www.ngksparkplugs.com/tech_support/spark_plugs/p2.asp I also found another Bosch Decoder: http://imgur.com/Lyy6S.png So H9DC0 vs F8DC4 The 0 and 4 in the end seem to be: 4 seems to have an extended insulator nose 0 just says "deviations from basic version" So I take that the 0's were the basic version and anything above that is an "enhanced version" which whatever the number corresponds to...
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#15
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Thanks for the links.
Quote:
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2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
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