Not really but there is one for the wires themselves. Its an offset 17mm wrench grabs the boot at the base and makes it really easy to pop them off and helps to get them back on without damaging the expensive wires. Under 20 on fleabay heres an example mercedes benz V6 V8 Engine spark plug Wire Boot Remover Wrench Tool 17mm eBay For the plugs some like a swivel socket for me Ive just used a plug socket
Quote Originally Posted by Check Codes Not really but there is one for the wires themselves. Its an offset 17mm wrench grabs the boot at the base and makes it really easy to pop them off and helps to get them back on without damaging the expensive wires. Under 20 on fleabay heres an example mercedes benz V6 V8 Engine spark plug Wire Boot Remover Wrench Tool 17mm eBay For the plugs some like a swivel
the hood in the service position used a spark plug socket regular straight 6 socket extension ratchet wrench for loosening and a torque wrench for the final tightening and I was fine. I think I read somewhere using a torque wrench with a wobble extension or universal joint might throw off how much torque is actually applied to the bolt nut or in this case spark plug. This is an interesting site mercedes
Quote Originally Posted by jimdollar This is an interesting site Samstag Sales Tools - mercedes benz Special Tools & Repair Information-Tool . They list a Hazet tool for the spark plugs. Hazet are a German tool company quality is superb I have a few of their tools at least as good as Snap-on. Thats the site where I referenced MB pn 112589010900 HAZET TOOLS ( Hazet 4766 ) 16mm spark plug Remover 38
Quote Originally Posted by Fotografa Its dead simple... you buy them as a complete set from mercedes. they arent expensive mercedes-benz Ignition Wire Set 450 V8 & 380 V8 eBay Once again the question arises.... do these wires require resistor or non-resistor plugs LOL this has been discussed before and at some length but the question would seem relevant once more
Quote Originally Posted by benzportland I thought Beru was OEM I put in the new Bosch set from MB last year and the outermost covering at the spark-plug end is already separating on some of them BERU was now Bosch and BERU are both OEM. If you buy them from mercedes in the US you will get Bosch. Buy outside the US and you get BERU and you need to put them together yourself. Id say its likely due to the North American market demanding a cheaper product.
Quote Originally Posted by tdicola Hi all I just purchased an 86 560SL and am going to change the spark plugs distributor cap rotor and plug wires tomorrow. Ive seen the service manual and it doesnt look like there are too many surprises but I wanted to check is there anything to be careful of or look out for The manual shows a special spark plug removal tool but is it necessary or will a socket extension
Check the gap of each spark plug -- sb 0.032. All mine were off out of the box. To remove the spark plug wires dont pull by the flexible wire - instead grab the metal cup wiggle back and forth slightly then pull out by the metal piece. I read that Platinum spark plugs are a no-no. Use ordinary plugs non-resistor like NGK BP5ES gapped at 0.032 When I removed the spark plug wires I took my air compressor and blew out any loose material around the spark plugs and then removed the spark plug.
Wow thanks for the great advice everyone. Yeah I have a plug wire puller that Ive used to change plugs in my Jeep so Ill definitely be using that. I did buy a new set of wires though since Id like to refresh everything. The resistor plugs & cables did kind of confuse me when ordering parts. I bought the Karlyn-STI wire set from here 1986 mercedes-benz 560SL Convertible - Ignition - Page 1 and these
several extensions of various sizes including a wobbly. And my spark plug socket had a rubber insert that held the spark plug. I was able to insert the new spark plug in my socket and use a short extension as a handle when inserting the spark plug. I used a flash light to see where the hole was and the angle to insert and by feel able to get the new spark plugs back in. Lot easier to do on my mercedes
For my 2001 S430 (and I believe the 2001 S500) the maintenance interval is specified as follows by MB Change spark plugs every 160000km (100000mi) Is something different with the SL I thought it had exactly the same engine as the S500 -- why would the spark plug interval be so short Just for the record I purchased my car with 170000km and the first owner took the car to the dealer for everything. The
Time to enter the discussion of resistance vs. non-resistance spark plugs. I had BPR5ES in my car and just bought WR7DC plugs both resistance plugs in the 3500-5000 ohms range. I replaced my 5000 ohm spark plugs with 1000 ohm Bosch. Ive got a different car but I think the fact that one of either the plugs or the wires should be resistance (plugs or wires). Resistance seems to mean 5000 ohms of resistance.
Im going to make a separate document to keep on my computer so I dont have to keep re-typing this. The spark plug circuit from the distributor cap is composed of three elements The plug the plug boot and the wire. mercedes has designed the system on these engines to have a) non-resistor plugs b) a resistor in the plug boot (thats why it is so big) c) the plug wire(and terminal). The resistor in the
Hi I have found BOSCH W9DC replacement spark plug for my 1986 560SL it is NGK BP6ES. I got very frustrated buy and return BOSCH WR9DC plugs - the sellers always promised to send me the W9DC plugs. Some NGK technical and sales info Part Number BP6ES Traditional spark plug Stock Number 4007 Traditional spark plug 14mm Thread Size 19mm (34) Reach 1316 (20.6mm) Hex Size Gasket Seat Non-Resistor Solid Terminal
Quote Originally Posted by nikitynick First off this is my first post to benzworld ive been using it for research and such but decided to finally start posting. I couldnt find much info on this but if its an obvious question i apologize. Im working on a 1978 450SL and swapped the spark plugs yesterday for Autolite 64 plugs. Once I swapped the plugs i noticed a severe decrease in power. with the accelerator
besides the spark plugs and ignition wires the air filter cover on top was moved for easier access and lightly cleaned. the hose going to the passenger side head was reconnected upon reinstall. The distributor wires were double checked and is correct in their orientation. The wires still look usable but they are not OEM wires. My question is I had to use the autolite spark plugs rather than the bosch
Quote Originally Posted by 93shocarguy Been doing a little research on here but not finding the answer I am looking for. Car currently has Autolite 63 plugs. From what Ive read these plugs have resistance and I do not want them in my car. Are there stock type plugs that I can pick up at my local auto parts store or do I start the online search and hope to find some I had a discussion with a spark plug
Quote Originally Posted by MBGraham I had a discussion with a spark plug expert from Bosch who had also worked for NGK. Conclusion was that there is no problem using resistor plugs on these cars. For non-resistor plugs Bosch W7DC or NGK BP6ES (if you can find them) For resistor plugs Bosch W7RDC or NGK BPR6ES I have used both NGK and the Bosch resistor plugs in our 72 SL along with new style Bosch
Quote Originally Posted by diaao I have purchased new spark plugs WR7DC I need a help regarding the correct spark plug gap for my 1972 350sl The last time I bought the correct Bosch plugs for my SL the gap was stamped on the box.....032 .80 MM
Quote Originally Posted by diaao I have purchased new spark plugs WR7DC I need a help regarding the correct spark plug gap for my 1972 350sl From what I recall those plugs (I used to have them) are already set to the correct gap. I checked them and they did not need adjusting. Gap was 0.032. I now have NGK plugs and gap is same. BTW those WR7DC plugs are resistor plugs. Many use them but some say we
that member ohlord sells I think for 25 shipped. You can also get it on ebay (and it may be his seller id I wouldnt know). Hell include some tips for changing them as well. Just PM him and hell set you up hes a good guy. EDIT Just noticed youre a bit out of the neighborhood. You can still PM him and see what hed charge to ship it over otherwise use a closer ebay seller. Typically a search for mercedes
Quote Originally Posted by hsahai I am regular member of W126. But I am posting here for one of my friends mercedes. He has 380sl in good shape. He call me to see and find out the problem of heavy misfiring and loss of engine power. When I pulled the plugs I found that last two spark plugs towards the firewall on the passanger side were soaked with oil. I tried put non fouling adopter tips with new
Quote Originally Posted by rowdie spark plug questions come up almost as much as oil threads. This visual of the difference between resistor and non-resistor plugs says it all. Stolen from peachparts.com Here is the link PeachParts mercedes ShopForum - View Single Post - Where can I get Non-resistor spark plug wires for 82 380SL Ok Ill bite what are the best ones for a 380sl I know I know -- do a search. But is there a consensus
I have a 280SL with a Pertronix Ignitor and I am using WR7DC with no problems. I also put them in a 230SL with a Pertronix same result. mercedes recommends that there be no more than a total of 16k ohms resistance in the circuit. There is usually 5k in the rotor and there may be 1k 5k or 10k in the plug wire ends. The R plugs add 5k. So I would say you should be OK unless you have the 10k ends. The resistance should be marked on the metal spark plug boot.
I just spoke to a Bosch representative who informed me that Bosch is no longer manufacturing non resistor plugs. I was told that theyve done comprehensive R&D & that their resistor plugs are fully compatible with vehicles that used their non resistor spark plugs. According to what I was told the resistors were added to aid with noise suppression(computer & radio). Make any sense At any rate the Bosch 7900 WR7DC is the application Bosch shows for a 1973 mercedes 450SL
Dont forget that different (i.e. Euro vs US) engines require different plugs due to different compression ratios. So a recommendation for a US 560SL will not be correct for your car. Changes in technology are also taken into account by mercedes so stick with what they recommend. you might think you are making it better by adding different plugs but the whole ignition system is built to work in concert
YKA - thanks for your reply...heres an update on what happened. After replacing the plugs the car was drivable but still way rougher than before. But I got back home and took it to a mercedes specialist. Hes going to need to do a full diagnosis of the car but took a quick look today. I asked him about the two things you flagged - exhaust problems and fuel system limp home mode. It might have been in
Thanks much I have never done spark plugs on the SL so I am a weee bit concerned Any thoughts on wire removal and torque strength when replacing the plugs
If you want tiptop performance why not use original mercedes Branded spark plugs which costs twice the price of Bosch though.
I have heard that it is best to go with OEM spark plugs on the SL with the CIS-E. That purchasing expensive ones that promise super performance or whatever doesnt alter or improve the car. Im not sure if it applies to 93 due to the electronic fuel injection Sent from AutoGuide.com Free App
OE BOSCH 7422 FR8DPP33 Double Platinum spark plug for 100K miles the above plug is still available but they have a new improved spark plug that costs less after a 2.00plug BOSCH Rebate. BOSCH 9652 FR8DII33X Iridium Platinum spark plug 16 spark plugs for 50.88 3.18 each
In my youth I was more skilled with tuning up 1960s vintage cars. I took the advice from the knowledgable folks here and successfully replaced the spark plugs on my 560SL. Its a pretty easy DIY if you have a spark plug socket several extensions of various lengths rachet and a spark plug gaping tool. Harbor Freight Sears auto parts stores etc has these tools. The best tips are 1- purchase non-Resistor
Quote Originally Posted by cwmoser In my youth I was more skilled with tuning up 1960s vintage cars. I took the advice from the knowledgable folks here and successfully replaced the spark plugs on my 560SL. Its a pretty easy DIY if you have a spark plug socket several extensions of various lengths rachet and a spark plug gaping tool. Harbor Freight Sears auto parts stores etc has these tools. The best
Quote Originally Posted by tcolit OK. I finally replaced the cap and rotor and spark plugs and wire set with zero change from before. I have a spark at all 8 cylinders but doesnt run on 1 3 and 5. My question is Wouldnt it be a pretty big coincidence for 3 injectors to go bad at the same time Is there an injection component (fuel distributor) that covers more than one cylinder that commonly goes bad Id say except for the engine running on only 5 out of 8 cylinders it seems to run as it should in terms of smoothness and mixture. Still has decent power on the remaining 5. Also no indication so far of a blown head gasket no water in the oil or over- heating or white smoke. Does anyone have any ideas Thanks Tom Next step would be to test the injectors in question. If you loosen the hard line remove the injector rotate the hard line install the injector on to the hard line and put the injector into a clear bottle and start the car to see if its spraying or you can do this httpwww.benzworld.orgforumsr-c1...or-tester.html
What the manual refers to is probably the tool to pull the spark plug connector. Actually any purpose-made spark plug boot puller will do. Trying to pull the boot off by hand will ultimately result in a broken spark plug connector probably sooner rather than later. The wire resistance is built into the stock connector and pulling bending twisting will eventually ruin it. Insofar as threading the spark
I think that you might have several issues. The spark plugs fouled up in 200 miles might be several things one being the mixture being too rich but also a low spark. It might have to do with running resistor wires with resistor (r) spark plugs. As far as I know all platinum spark plugs are resistor type plugs. I had this problem and it got muich better once I had the proper combination of resistor
You did not share what gap setting you have on these spark plugs. Platinum spark plugs in these older engines is not generally recommended. And if you just stuck them in as they came wo checking gap I suspect the gaps are double what they should be for some later model application. I found this on my car when I bought it and it was amazing what switching to the right plugs gapped correctly made. Oh
Quote Originally Posted by Logik015 107ers In the process of replacing spark plugs for my 79 450sl. I am using the MB spark plug socket that comes with the tool kit. Ive done 567 successfully but im stuck on cylinder 8. I cant remove the MB socket from the spark plug after I tighten it in because the heat shield adjacent to it (circled red in pic) prevents me from removing it. The only way I can remove
Quote Originally Posted by rennwerkes Whats the general consensus on renewing spark plug wires IIRC on my 97 there are no spark plug wires. Eight Coils are connected to each spark plugs via connectors. I think your 02 also has no spark plug wires.