[Guest (MBNZ)]

I drive a 1993 190e 1.8 european version and I seem to have a lot of pinking when driving at different speeds, any ideas?<br> Also sometimes after long journeys with the a/c on, the engine refuses to shut off even though I have turned the key off.

 

[Guest (MBNZ)]

sounds like the timing is out check that

 

[Guest (MBNZ)]

I checked out the timing

 

[Guest (MBNZ)]

[No message]

 

[Guest (MBNZ)]

if the engine is running on after you turn off ignition it is definately timing try the distributor i know you can turn that backwards and forwards just a fraction to retard and advance the timing without touching the timing chain i used to do it on my peugout 309gti a few years back dont know if its same with the mercs though<br>

 

[Guest (MBNZ)]

it is the same with the mercs and I have tried that as well, but I guess I will have to try it again.

 

[Guest (MBNZ)]

it is the same with the mercs and I have tried that as well, but I guess I will have to try it again.

 

[Guest (MBNZ)]

thats wot usually causes pinkin emman if it is advanced too much. as i said i done it on my pug 309 and it was crazy there was a lot more power and flames shot out the tailpipe when you put the foot to the floor but on a serious note thats the onlt thing im certain it could be

 

[Guest (MBNZ)]

Change brand of gas.Use premium.Pinging leads<br> to disaster.

 

[Guest (MBNZ)]

how many types of gas do you get in the u.s. ??

 

[Guest (MBNZ)]

Three Types!

Regular-87 octane<br> Mid grade-89 octane<br> Premium-92-94 octane<br>

 

[Guest (MBNZ)]

Re: Three Types!

I will work on both the timing and gas and post a feed back

 

[Guest (MBNZ)]

Re: Three Types!

I have this happened in my 88 Jeep. two reasons:<br> carbon build up on valves<br> wrong sparkplug type

 

[Guest (MBNZ)]

Re: Three Types!

I am using original merc plugs and there is no carbon on valves. I have purged the injectors and done a complete tune up but the problem is still there. The garage also think I might have filled up with contaminated fuel, so my next step is to drain all the fuel and fill up again. <br> Has anyone of you had problems with your cat convertor? if so what are the symptons?