What's the firing order for the s420 MB 4.2L?

so 2 posts 1st one is useless,
MBZ ,firing order.
so google it using real words.

like this
Mercedes-Benz S420 firing order 1995 example

https://search.brave.com/images?q=Mercedes-Benz%20S420%20firing%20order%201995


or buy the service manual and read it;. on any car.

need new ignition wires

Look in the 1999 service manual it has the correct firing order.

im sure the timing cover at front of the engine
http://www.importecwarehouse.com/Mercedes-Cam-Camshaft-Position-Sensor-Front-of-Eng-p/mb0021539528.htm

i would assume that there is a hardened steel sleeve "VERY HARD" that surrounds the barrel the same as the W140 model. the repair shop will have trouble cutting this off , like the novices at diesel motors in perth western australia. and will probably want to charge you around $3,000 AUD to replace the key and barrel. which collapsed in my case. jamming the key in the ignition. not bad for a vehicle that had cost $219,000 AUD , and had covered 220,000 km, when there countless thousands of 40 year old toyotas and holdens running around with the original ignition barrels. anyway , digressing , the switch that sits behind the actual barrel lock will no doubt fail not long after u change the barrel also. because i would say that the junk they manufacture for these over rated piles of trash (still riding on the reputation of their 1970's products, is about the same quality level as cheap rubbish componentry used in the W140 . "google search for W140 wiring harness there s a blog with a list of owners in the US with failed wiring insulation causing the copper wires to short out and in many cases cause engine fires. manufactured by Bosch to MB specification to be biodegradable, what a totally brilliant place to start , crucial electronic components, with severely limited life from the start.! , the ignition switch doesn't need to be cut out of the steel dash frame like in earlier models, and is not particularly hard to remove however the stealer will still try to slug u around a grand and tell u its a HUGE job. a friend of mine had my ignition barrel and switch out in 20 minutes after the switch behind the barrel failed after the dealer installed a new key and barrel and charged me 6 hours or so at $120/ hour.

sir, you can choose this one, maybe helpful, Just my friend recommand me, He said this one power.http://www.chinasinoy.com/wholesale/best-quality-mercedes-star-diagnosis-new-mb-star-c3-pro-for-benz-trucks-cars-1716.html

not sure what you are hooking up...if you are putting on new spark plug wires...locate the distributor...usually marked #1 and goes in clockwise circle...firing order for the V8 is 18436572...hope that helps...usually changing one wire at a time is best...to not confuse the firing order...

Firing order for 2003 (B6) Audi S4 4,2l V8 engine is: 1 - 5 - 4 - 8 - 6 - 3 - 7 - 2
Cylinder no.# 1 is first one from right front side of the car, and cylinder no.# 4 is the fourth one (front to rear) on the right bank of cylinder block. See picture below:

Here's firing order diagram for your vehicle. Cylinders are numbered and arrow points towards front of vehicle. That should solve your problem. Please leave feedback if that solves your problem!
-Brett

I would pull the plugs and let the gas into the cylinders to dry out , you may have a hydrolock engine after putting so much gas into it , recheck the firing order to be sure is OK ususlly when you see a carb backfiring and smoking the firing order is not right