Where are the spark plug

Could someone please show me where the spark plugs for the 1997 E420 are?. I open the hood and remove the cover but can not find the plugs, could they be under the 2 black plastic cover on both side of the engine?. I saw 3 sets of Torx screws on each cover, your help is very helpful. Thanks

they are under the coils(see pic in link)
Each ignition coil is held in place by a bracket secured by two allen screws(5mm). Remove the screws, set the bracket aside, and pull the coil straight out
http://www.performanceproducts4benz.com/drawings.aspx?bmid=228
no antiseize on the threads
ohlord
Don't buy parts from that link  too pricey
try www.autohausaz.com

Ohlord,
 
Do you have a web address to view 190E, 2.3,1991 engine ?
 
Regards
 
Syed

http://www.performanceproducts4benz.com/drawings.aspx?bmid=29
complicated little thing
ohlord
parts at autohausaz.com
http://www.autohausaz.com/search/category.aspx?sid=qi4lx2qr2fzub4ywqkinek45&modelid=1192698@190E&year=1991&makeid=800016@Mercedes

Ohlord, thank you very much, I also have a question hope you can help, I bought this 97 E420 with 125,000, drove it for 100 miles on Sat. wash the car (engine campartment) on Sun., Monday go to work withour problem, on the way home the car would not hold idle, in drive it drop below 500RPM and shakes like crazy, do you think I have shorted something out when I washed it, please help. Thanks you in advance.

Never power wash an engine ,cover all air inlets and wires,gunk foamy and then hose off.
you most likely got water in the mass air sensor or down into one of the spark plug recesses or into a harness or knocked off a vacuum line.
Get a box fan angle it down towards the engine and let it sit on hibh for an hour to dry it ll up.
then a light spray of wd40 on all exposed wires to drive away the moisture.No codes?
Don't do that again
ohlord

I'll try that right now, tomorrow I'll buy or borrow the code reader from Autozone. I have read one of your thread about the code reader from Harbor Freight, my wife went there and the salesman told her the $39.99 code reader you have mention is only design for American car, not European, she didn't buy it, is the guy know what's he's talking about? please clear this for me. Thanks

94169  scanner  harbor freight tools  all obd2 cars sold in the usa since 1996 are obd2 compliant.All *** that includes mercedes.The guy is just misinformed.
Are you showing any codes?
good diy stuff on benzworld.org  w210 section
and  mercedesshop.com    diy articles
have fun
ohlord
plug port for the obd2 is under the dash above your left knee,see the little flap......
take the printed page from the internet ad for the 94169 scanner and the store will price match that unit 94169

It's great to have help from member like you, thanks again

Members make the forums,
thanks
and you are not the only one that has done it(washed the engine)
http://www.mbworld.org/forums/showthread.php?t=223233&highlight=

Hello Ohlord, off this topic, do the timing chain in this 97 E420 ever need service and when?. Thanks

Clean oil proper intervals members have 250000 miles on chain in the 420 engine,if it ever comes apart for rebuild,which you hope to avoid by properly maintaining it,then you measure the chain and replace it to specs.
no worries.
ohlord

Hi Ohlord, I've got the codes
1. P0302
2. P0304
3. P0308
4. P0300
All these shows the multi cyl. miss firing as the scan showed but I have not enough time to remove the spark plug cover because I need a special Torx socket, i hope it just the condensation on the spark plug or wires not the coils but your input will be very apreciated. Thanks
 

Security torx bits at schucks or kraggens what have you  they have a little dimple in the middle and a whole set is about 7 bucks.Something needs to dry them off.
ohlord
you don't want to keep driving it long with the misfires cuz every miss means a whole cylinder of unburned fuel out the pipe and into the cat where it burns hotter than hell in the summer  and that can take out a cat faster than a jack rabbit takes his lady friend.
ohlord

That's what I'm going to do this weekend, car have been out since the CEL lit up, thanks

Hello Ohlord.
The car is fine now, what a pain, this is what I've done to make it work again and thanks for your help.
1. Remove spark plug cover, 3 torx nuts on each side.
2. Remove ignition coils, unhook wiring harness.
3. Replace spark plugs.
4. Clean spark plug connectors.
5. Let it air dry overnight
6. Reset CEL light with code scanner.
Car is smooth like before and I learn a lesson not to hose the engine ever again, I think if it ever gets dirty, I'll wipe it down. Thanks for this forum and Ohlord.
 

Don't take it as a mistake.Consider it a cheap lesson in diy diagnostics.Besides you did the plugs and saved yourself hundreds of dollars,so it was worth it.You learned something and got paid doing it
ohlord

For members with the m112 and m113 320 and 430 engines I still have the special spark plug boot removal tool the makes the plug job much easier and avoids damage to the plug wires.
$28 delivered stateside
also have the special dipstick for the 722.6 transmission fluid change which is a must do if you have over 60k miles.$40 delivered
ohlord