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| S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC |
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05-26-2010, 11:12 AM
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#1 | ||
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Newbie
Join Date: Mar 2010
Posts: 7
Drives: 1997 s500
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i Need Help My s500 1997 w140 Engine is Shaking i think i need spark plugs
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05-26-2010, 07:02 PM
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#2 |
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Super Member
Join Date: Oct 2008
Location: Fairfield county, CT.
Posts: 815
Drives: 00 C-280(sold), 99 C-43/55(sold),07 E-350(sold) 09 E-350 w/H&R drop and HRE 891r's, 04 SRT-10 ram
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Remove the black covers on top of the valve covers E10 tork.. Under there are your coils remove them and then your plugs.... Try the plugs first but those engines it was very common to get bad coils
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11-26-2011, 03:47 PM
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#3 |
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Junior Member
Join Date: Aug 2010
Location: San Jose, CA
Posts: 15
Drives: 1997 MBZ S420
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Just had S420 shake and idled roughly. Brought it to my independent MB repair shopand told me misfire on 1 and 6 cylinders. I was afraid the pistons/cylinder head blew but was informed car needed coils on both cylinders replaced. Also vacuum hoses have to be replaced. I should have checked vacuum hoses first. This could have been the culprit. Cost? $700.00 parts and labor. Recommende spark plugs replacement for $350.00. I declined since I can replace them myself. hope this helps.
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12-03-2011, 03:09 PM
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#4 |
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Newbie
Join Date: Feb 2005
Posts: 9
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ive had this problem so many times i cant even begin, initially ignition coil 1 misfired, then 8, then 7, then 2, then 6, and then 3. this all happened over the course of 20k miles, i have a 97 s420 with around 140k miles now. dealership cost for replacement was around 400 a coil, my indy shop is around 200.
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12-03-2011, 03:09 PM
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MBWorld
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| Tags |
| 1997, 97, change, coils, cover, engine, have, mercedes, plug, plugs, removing, s500, spark, valve, w140 |
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