Mercedes W124 Overvoltage Protection Relay K1

[@hellohumans175]

i replaced this relay in my 1991 190E and it fixed my cold start and cleared ABS light

[@NileQuant]

Thank you this is the exact information I was looking for.

[@fastbill3420]

Great video and helped me out when I checked my OVP which had failed.

[@BryanRussellGarfield]

Thank you ...!!!!!......I did not know that it was a Relay. ...now I can remove the K1 from my 1989 Parts Car for my 1988 560 SEL

[@TuanNguyen-pp4uo]

You are my favorite you tuber. Kindly do a video for AC compressor relay. Thank you in advance 👌

[@maktm7613]

Thanks for the video 🤝 I understand that this relay opens the power circuit when the voltage is high, but I don’t understand what circuits this relay opens and can the car stall?

[@julesleon4057]

good video .i have a w126 380 se which is 4 pin but basically the same.thanks for identifying the pins.thumbs up

[@ozpsp]

Great video my Mercedes mechanic wanted to charge me for whole ABS system and all it was is that fuse thank you thank you

[@asadrashid8055]

This guy is a top 🎩 Engineer

[@alanOHALAN]

Hi, today i broke one of the connector wires that this relay connects to. It is actually two wires, both broken off, I twisted them together and connect them back to the sucket. I think it goes to the number 30 pin. Did I do it right? I am waiting for a new OVP relay to replace the current old one.

[@quality45a]

My engine temperature gauge is not working, can you suggest what I should check and replace, PLEASE. Thank YOU!!

[@ram457moreno]

Can you tell me what to look for on my gas car .... I have a. 1989 Mercedes 300 SE and it has issues starting ... Some days I can turn the key it starts some days it gives me a hard time to start .... More so when I drive it then turn it off and later when I restart the car it cranks a good amount of time before it starts but also sounds like it misses then it clears up to running smooth again .. My issue is starting why do I have this issues all my ejectors fuel pump fuel filter spark plug wires cap and rotor her happy and replaced still has the same problem

[@murtadashaban6253]

How to get rid or change the seat belt buzzer

[@welcometorussiaog46]

I cant find these anywhere anymore

[@Semmelhuber]

Thank You very much for this video!

[@Howie672]

If you want to test it put reverse voltage to your diode and see that it’s zero current till 22v

[@jurgengorges2927]

Super...thank you

[@sportsmansparadice42]

Hello Diesel Mercedes. I have a 1992 300e with the 2.6 liter M103 engine. I having a issue with the car stalling out when you come to a stop. Under light acceleration it gradually picks up speed as normal. However if you try to accelerate hard it stumble, and has a miss fire. I just purchased a OVP relay installed it, and it still does the samething. This time it stalled, and wouldn't start back up. It has spark, but not start up the starter just turns over. Spark plugs look good too. I'm thinking maybe fuel pump relay or fuel pump. Maybe crank position sensor? I am at a lost right now. I'm more of a Nissan guy, but any help would greatly appreciated. Thanks.

[@dieselmercedes7507]

what is the fuell pressure ? how long time ago replaced fuel filter ?

[@sportsmansparadice42]

Diesel Mercedes Thank you so much for your reply. This weekend starting September 2nd me and too other techs are going to target the fuel system. One tech is a Nissan specialist like myself, and the other is a BMW specialist. I did have one more question. Does the fuel pump relay fail often? And could I run a 12v lead to bypass it just for trouble shooting? I know the the pressure needs to be with 5.3 to 5.5 bar which is about 80 psi. That's high compared to our Nissan VQ35DE at 51psi.

[@sportsmansparadice42]

Diesel Mercedes Thank you again. I removed the distributor cap today, and found motor oil everywhere. My guess is that the cam seal is bad. My question is could motor oil damage the distributor? I sure hope not. Any suggestions would be greatly appreciated. Thanks again. Walt

[@davidgans9596]

E

[@calebrambis1775]

Same problem on my 84 500SEL gasser. Idles just fine but will occasionally stop when slowing or coasting. Major issue is lack of power, engine cannot get above 1100 rpm. Stalls and misses and backfires. Can’t accelerate. If I suddenly release the accelerator after opening the throttle and letting the engine miss and cough rpm’s surge to 2,500 and then drop to idle. Any ideas?

[@perttukilpelainen4010]

Very good clearly told!!

[@СссрСсср-ш8м]

👍👍👍

[@scherritknoesen148]

Thanks for this!

[@mickgriffin3335]

Excellent info many thanks

[@victorsais9836]

Does a 93 400 sel also have one, and if so where is it

[@rfbu]

great video. will test mine

[@dieselmercedes7507]

good luck !

[@rfbu]

so I took it out of my car and tested as suggested. it clicks and the pins are energised. so I know my relay is working. also, i can feel the relay click when it is mounted in the socket. so i know the circuit to the relay is working as well. i might try injector cleaner to see if that solves hard start. it is strange as once it gets going it works fine. only really hard to start in morning or when cold. i had only recently replaced thermostat and air filter. although i seldom drive it. perhaps driving it more often might fix things. cheers

[@runebjarnstad1497]

have problems With my w-124 pleasee help mee

[@RooftopKY]

On my 85 300SD, my abs light is on, tach not working, runs fine and idles smooth. I was thinking OVP relay but mine is good. Not sure where to go next.

[@cherkas009]

Matthew Olmstead how do you know it's good

[@antonypereira3853]

Good man

[@carlosalbertotejeiro4436]

You bet, video ia very helpful!

[@hamidaouane1806]

Traduction en francais

[@Audial19]

Diesels sucks