Project Iona Part 11: 1997 Mercedes S500 Spark Plug, Ignition Coil, Ignition Coil Boot Replacement.

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W140 Restorations

W140 Restorations

Жыл бұрын

Welcome back to W140 Restorations and Part 11 of Project Iona. In this episode we dive into the heartbeat of this M119 V8 and tackle some rough idle and low RPM issues by servicing the ignition system. Watch as we remove the plastic vanity covers and dive into the spark plugs, ignition coils, and coil boots of this S500.
Parts and Part numbers:
Bosch Spark Plugs F8DC4
Bosch Ignition Coils 0001587203
Mercedes Ignition Coil Boot 0001594142

Пікірлер: 23
@CarharttDADDY
@CarharttDADDY 9 ай бұрын
Fellow W140 and C140 owner here. Glad I found your channel
@w140restorations
@w140restorations 9 ай бұрын
Thanks so much!!! Glad you found it too. Hope some of the tips and tricks help you out on your cars. Thanks again for sharing.
@farerse
@farerse Жыл бұрын
Nice video, love watching these cars being worked on. I think those round things by the cams are the cam magnets that adjust the variable timing. Funny to see the old style bayonet expansion tank cap on a 97. By that year most w140 had shifted to the round plastic cap.
@w140restorations
@w140restorations Жыл бұрын
Thanks for watching the channel and commenting. Both Iona and Betty have the old school expansion tank caps. I love it. As you said most I’ve been through have the plastic cap. Face palm on the camshaft sensor statement. It’s the magnetic camshaft adjuster. I rewatched the video and great catch.
@cheezy1969
@cheezy1969 9 ай бұрын
Just found you guys, I own a late 96 S420 short wheel base and am in the process of buying a 97 S500 Long wheel here in Australia. Obviously having a few issues due to lack of serving and or poor maintenance so I am sure you videos will be a great help as these 2 projects come alight. Liked and subscribed
@w140restorations
@w140restorations 9 ай бұрын
Thanks for the positive feedback!!! Here's hoping these videos help you with both of your projects. I've never seen a right hand drive W140 in person but many other short and long wheelbase left hand drive versions. Are both of your projects right hand drive W140's or left hand drive? Interested to hear, and thanks for subscribing to the channel.
@Shinjuku-sp4bt
@Shinjuku-sp4bt 9 ай бұрын
Great job! NIce work done on the amzing car! Very impressive :)
@w140restorations
@w140restorations 9 ай бұрын
Thanks so much for the kind words. Wait until you see her with the rear bumper painted and the chrome polished in a few upcoming videos. Thanks again for supporting the channel.
@zosoachilles
@zosoachilles 6 ай бұрын
Nicely done video. I've owned a 96' S500 with 235k for the last 20 years. I had my indie change the plugs a few months back. I wish I had swapped out all the coils while he was in there, darn it. I purchased the platinum plugs from FCP and now I wish I had gone with copper. I do have a slight rough idle when cold, otherwise it runs great. This has happened before and cleaning the MAF seemed to help as here in C. FL any silica that gets past the air filter doesn't play well there. You bought platinum plugs, so please post another video if you get some experience running them.
@w140restorations
@w140restorations 5 ай бұрын
Thanks so much. I will do when I get the platinum ones in my current project M119. I’m running standard ones in Iona and getting alright MPG the way I drive her hard in town and amazing MPG when I’m in the interstate. 23 to 25 on the interstate and 15 to 18 in town. Let me know if you’ve gotten your high mileage awards from MB. Dying to get Iona 100% and take her to the dealer to have it signed and submitted. Thanks for watching and commenting.
@isaacvanmeter4948
@isaacvanmeter4948 Жыл бұрын
Love the new intro, really comprehensive video keep it up
@w140restorations
@w140restorations Жыл бұрын
Thanks for the comment. Glad you like the videos. More to come!
@user-jy6zt9vv9t
@user-jy6zt9vv9t 5 ай бұрын
Nice video I have a 1997 SL500 ITNeeds a lot of attention.It hasn't been driven in seven years. I got it started I did fuel pump on fuel filter and it start up So now I want get oil change but a lot of mock not good so I could used your help what to do change heads on it I can't fine no one to work on it .Would you like another car to work on.
@user-jy6zt9vv9t
@user-jy6zt9vv9t 5 ай бұрын
It' for sales
@w140restorations
@w140restorations 5 ай бұрын
Thanks for watching the channel and for the comment. Sorry to hear you are having trouble with your R129. I'm happy to help out the community and love working on these cars. I just picked up my second SL500. Be on the lookout for a new project series about her. Hopefully the new series helps you with your SL500 issues. If you are a stones throw from the Tampa area there are some wonderful social network groups that support each other and some of the members have parts and part cars available.
@user-jy6zt9vv9t
@user-jy6zt9vv9t 5 ай бұрын
So what do you think 1997 SL two door coupe convertible need lots of work .
@w140restorations
@w140restorations 5 ай бұрын
Thanks for watching and for the comment/question. It really depends on a lot of factors, namely a clean title with no accidents and engine displacement. The saying “there’s nothing more expensive than a cheap Mercedes” holds true. For me, anything with a m119 platform is a good starting point for getting to yes. Good luck with your decision and your SL journey.
@TonyMontana-qe4wz
@TonyMontana-qe4wz Жыл бұрын
I have the same problem run rough en engine shakes and hestation when driving i only change distributor rotor and sparkplug helpp me ???
@w140restorations
@w140restorations Жыл бұрын
Thanks for watching the channel and all my best on your own journey with your W140. I start with the basics like spark plug gap, correct firing order, vacuum leaks, and lose or unconnected electrical components before moving on to components and testing. Maybe a crossed plug wire is to blame, or an unplugged sensor if it wasn’t acting this way before you changed your cap and rotor. Start with those and hopefully the answer reveals itself.
@TonyMontana-qe4wz
@TonyMontana-qe4wz Жыл бұрын
@@w140restorations thank you 😁
@w140restorations
@w140restorations 11 ай бұрын
Of course. Best of luck working on your W140. They are amazing machines.
@redshot_8897
@redshot_8897 Жыл бұрын
Great video. I appreciate that people are bringing back the W140's. I was wondering, were you getting a rough idle before you changed out the coils,boots and spark plugs? I have a 99 CL500, and I'm getting a rough idle and misfire on cylinders 2,3,4, swapped coils to the other side, but still getting misfire code. Thxs
@w140restorations
@w140restorations Жыл бұрын
Thanks for watching the channel and thanks for the kind words. Iona was a slow decline in idle and then tremendous rough idle below 1000 rpm and then smoothing out over 2500 plus. Cylinders 4 and 8 were fouled bad and I could take them out with my fingers. For your cylinders on one bank to be bad it may be the camshaft sensor or the camshaft adjuster magnet or both. One bank of fouled plugs leads me to think adjuster magnet since the variable valve timing is on the intake valves only. Wishing you the best of luck working out the problem on your 99 CL500. Happy wrenching and thanks again for watching.
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