new 4matic, shaking at 2500 miles :(
How To Quickly Check Coil-Packs At Home
Things You'll Need:
Tools to remove engine cover
Proper Socket to fit coil pack bolts
Ohm/Continuity Meter
1
Park your car in a safe place and open the hood.
2
Locate the coil packs in your engine. They are usually on top at each cylinder location.
3
Remove the suspected coil pack bolts. Mark or label it if removing more than one.
4
Unplug the pack's electrical connector and remove the coil pack from the engine. Notice that there are three prong connectors inside the coil-pack socket.
5
Turn on your meter and set it to check the continuity range. Touch one probe to the spark plug terminal inside the boot and the other to the center terminal inside the connector socket end. It should be 0, so no continuity. If it's shows continuity, or any reading above 0, the pack is shorted out.
6
Set your ohmmeter to the 10 ohms range, and touch the outer two terminals inside the coil-pack's socket. You should not get more than 0.5ohms. Anything more the pack should be replaced.
Last edited by MBRedux; Jan 9, 2012 at 12:44 PM.

You discuss "coil pack bolts"


Last edited by Glyn M Ruck; Jan 9, 2012 at 06:03 PM.

Typical MB Coil Pack.... If you don't know what it is, these packs are what fires the spark plugs... your GLK has six.

1) Bad batch of E10 fuel (Kinda doubt it though)
2) Faulty Coil-Pack* (My best guess) Link: https://mbworld.org/forums/glk-class...al-issues.html
*There have been a few reports of these going on brand new Benz's....

Wayne
The Best of Mercedes & AMG
today marks 19 days in shop, second service for the same problem. Technicians have put ~ 400 miles on a 3-month old car, after repeated engine component replacements and extended text drives. No ETA on the fix yet.
I'm not interested in lemon law advice. I trust MB service will make good or will make good will.
Dealer's client-service management has been great. I needed an AWD for the snow, and Service rented a dodge through Hertz to make sure I would be driving a safe vehicle in winter weather driving conditions.
I hope hope hope my car, if i get it back, smells like a new car.
Lastly, most importantly, if I get it back, I hope my car doesn't kill me.
Look forward to my next update. I am!
-J
Thanks for keeping us updated. Information on problems like this are a good thing.
Good luck! Be safe!
Wayne
Today, 1/25/12, Service fixed an issue they believe to be the roote cause of cylinder 3 misfire: extra/double spring cap with cylinder three.
Service added 600 miles to the car during service and replaced seven engine components before discovering the double spring cap.
After 19 days and 600 miles, the car smells awful and no longer exudes the new car smell &/or leather smell that Mercedes heritage is so proud of (judge you will, yes, i paid for factory premium leather).
There are scratches and grease marks.
The foreman signed my paperwork agreeing that he noticed the same things I described above.
A few days ago, CEO Stephen Cannon received my letter stating my concerns about my safety, initial quality, and damage due to Service driving my vehicle.
Stephen responded with five days, indirectly through my Case Manager. Case Manager's communication lacked substance, accuracy, and willingness to agree to any next steps. This communication channel was the least helpful during the entire process.
I'm hoping MB will do more, and if so I'll let you know. Otherwise, this is my last MB post ever because I quit the MB club, I don't belong here.
bye guys and drive safe
Today, 1/25/12, Service fixed an issue they believe to be the roote cause of cylinder 3 misfire: extra/double spring cap with cylinder three.
Service added 600 miles to the car during service and replaced seven engine components before discovering the double spring cap.
After 19 days and 600 miles, the car smells awful and no longer exudes the new car smell &/or leather smell that Mercedes heritage is so proud of (judge you will, yes, i paid for factory premium leather).
There are scratches and grease marks.
The foreman signed my paperwork agreeing that he noticed the same things I described above.
A few days ago, CEO Stephen Cannon received my letter stating my concerns about my safety, initial quality, and damage due to Service driving my vehicle.
Stephen responded with five days, indirectly through my Case Manager. Case Manager's communication lacked substance, accuracy, and willingness to agree to any next steps. This communication channel was the least helpful during the entire process.
I'm hoping MB will do more, and if so I'll let you know. Otherwise, this is my last MB post ever because I quit the MB club, I don't belong here.
bye guys and drive safe


Good luck with resolving this.
I also have similar doubts about the mileage which got put on my car, but it's way less than your. However, I strongly doubt that they took my car for joy ride because there were a period of time my car was checked out without letting me know. The service director at Fletcher Jones Fremont was not very helpful either.
My last C300 was from Africa. I have ordered another 2012 C350 from a different dealer now which is on the way from Germany. I have not totally given up on MB yet. I like the design of C series. But the quality wise, it's a bit hard to tell now.
Hope you can get a satisfied answer from MB.




