M119 Lower Engine Harness Rebuild

Рет қаралды 3,689

The Friendly Neighborhood Technician

2 жыл бұрын

In this video we disassemble and rebuild/repair the lower engine harness on the M119. Replacing the cracked and deteriorated wires.

Пікірлер: 30

@e28powerm30 2 жыл бұрын

Those barrel pins are actually just soldered to the wire. It's super easy to replace the whole wire, and not have to patch it.

@johnwallace7104 Жыл бұрын

Thanks for this video! I need my lower harness rebuilt on my 94 SL500. A shop quoted me 700 bucks to rebuild mine. After watching this, I know I can handle it. Once again you have pulled me away from a Wallet fire. You’re awesome!! I feel like I owe you lunch now 🤣

@FriendlyMBTech Жыл бұрын

I'm glad it's helping you! Let me know how it goes.

@laszlovascsinec2106 2 жыл бұрын

I'm watching all your videos and love it very much! You are a real professional! Keep going!!! Respect!

@FriendlyMBTech 2 жыл бұрын

Thank you so much!

@ese30 2 жыл бұрын

I did it with the wiring of the headlights, which were in a deplorable state. Thanks!!

@leeknight6479 2 жыл бұрын

Excellent content as always... Thanks

@FriendlyMBTech 2 жыл бұрын

Thank you!

@FOR_THE_BOYZ 2 жыл бұрын

Really helpful, I have a 92 S500 with a mayor wiring problem, any wire that I moved was cracking and making contact, there for the injectors were dumping fuel into the pistons, again really helpful. 👍🏻

@FriendlyMBTech 2 жыл бұрын

Thank you! I'm glad it helped!

@DD-cg1xg 2 жыл бұрын

Amazing amazing amazing. Subscribed!!

@FriendlyMBTech 2 жыл бұрын

Thank you so much!

@xjeeper 2 жыл бұрын

Easy to make when the engine is out but pia when the engine still is in the car.

@mb.warehouse_find4221 Жыл бұрын

thanks for the video... I have replaced my upper wiring harness but no the lower wiring harness. So everytime I drive my 1995 S124 E320 and hit some small uneven road like from asphalt over cement, manhole covers, cracked roads & freeways... the whole engine shuts-off completely (no electric, no power steering, no brakes, nothing on the cluster gauge ) and then cluster gauge will light up all indicator lights. Then when the vehicle is in shoulder and or safe side of the road, I will turn the key off and try to start again by going first to 2nd position on the ignition and will see all indicator lights will come on except for the "check engine light". Vehicle will sometimes not crank totally and then will crank but will not start. I noticed to that when I wait to let the engine temperature go down below 80F from maybe 97F +/- the engine will start. Could it be the lower wiring harness the short circuit everytime I hit a bump can shut off all electricity while driving? Kindly advice From mbwarehouse_find

@FriendlyMBTech Жыл бұрын

Definitely sounds like something is loose or there's a short somewhere. I would start with the lower wiring harness. If you know it could be iffy, it won't hurt anything to repair it.

@jamisonconti1458 2 ай бұрын

I had a question for you. I am replacing my lower harness right now on my 93 500SL. It looks like you can just rewire the oil pressure, alternator, oil level, without even pulling the harness. You would just leave the pink wire alone. Do any of the 4 effected wires connect to anything else in the harness or do they just run through it?

@FriendlyMBTech 2 ай бұрын

They just run through it.

@jamisonconti1458 2 ай бұрын

Thanks dude@@FriendlyMBTech I think Ill just run the wires separately then.

@dolbygang4066 Жыл бұрын

Hey man how did you handle with wires sizes ??? Thanks

@FriendlyMBTech Жыл бұрын

I found wires that were the same size or larger than the original. Larger is ok, smaller is not.

@cadenkey8650 7 ай бұрын

if i dont have a donor harness, could i theoretically just purchase a few 16g petrol/heat proof wires to replace the 4 with?

@FriendlyMBTech 7 ай бұрын

Yeah, that would work.

@cadenkey8650 7 ай бұрын

sick. thanks so much man. been having intermittent start issues. everything is fine, lights come up in the dash and everything, go to crank, no click no turnover no nothing. but then, the next day it'll work just fine for a week or 2, then repeat. hoping this solves the issue!@@FriendlyMBTech

@johnwallace7104 Жыл бұрын

Honest opinion, do you think the M119 is a better engine than the M113?

@FriendlyMBTech Жыл бұрын

Each has their own ups and downs. The M119 is smoother than the M113. The M119 is DOHC vs SOHC for the M113. Less goes wrong with the M119 than the M113. The M119 doesn't have an intake manifold that breaks like the M113. The M113 will last longer than the M119. The M113 is cheaper to fix than the M119. The M113 has more performance variations and options than the M119. More power is available from the M113 and it's options than the M119. More parts are still available for the M113 than the M119. A lot of M119 parts aren't available any more. That's just off the top of my head.

@johnwallace7104 Жыл бұрын

@@FriendlyMBTech I always felt like the M119 was a bit superior when it comes to build quality but I’m a huge fan of the naturally aspirated M113 5.5 in the Older AMG cars. I know the M113 feels a bit easier to diagnose 😆

@e28powerm30 2 жыл бұрын

Can you tell me how much longer the 4 wires to the 4pin connector are, compared to the battery cable? Mice ate those 4 wires, so I had to patch them, but I want to get the length right.

@FriendlyMBTech 2 жыл бұрын

From the end of the battery cable to the end of the 4 pin connector is 6 inches.

@FriendlyMBTech 2 жыл бұрын

At least on mine it is. That's probably pretty close. You might want to make it a bit longer just in case. Maybe an extra inch or two wouldn't hurt.

@e28powerm30 2 жыл бұрын

@@FriendlyMBTech Awesome, thanks.