Help your M157 live longer

[Sam87]

Just want to say big thanks to f17ant for creating this thread.

If it weren't for OP, I wouldn't have known about this. I'll feed back on updates in a weeks time. No need rush if thinking about unplugging, its best to make an informed decision.

There was me thinking you read all my posts

** Pic's of my new car, DESIGNO S63AMG V8 BiTurbo W221** | Members Gallery

Beautiful car 👍

forums.mbclub.co.uk

Just saying that's all

 

[badgx]

I missed your post Sam, have provided my initial thoughts. Will upload some further updates and my personal views If you can do the same when you get to drive your beast and share with mbclubbers, will help others, especially if it's a good thing to share

 

[Sam87]

I missed your post Sam, have provided my initial thoughts. Will upload some further updates and my personal views If you can do the same when you get to drive your beast and share with mbclubbers, will help others, especially if it's a good thing to share

I was joking
I'll do that but it will be a while before I'll be able to test how the car drives with the sensor unplugged as the S63 will come out summer time

 

[f17ant]

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New video out from Tassos doesn’t seem to be a yes or no answer if you should unplug it to me it seems like he has done some research and there’s no definitive answer.

 

[badgx]

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New video out from Tassos doesn’t seem to be a yes or no answer if you should unplug it to me it seems like he has done some research and there’s no definitive answer.

Thanks friend for posting, looks like a popular topic. I can see it's taken quite a bit of storm over in the States, they do love their AMGs

I like the senario Tasos gave - 60% load at 3000rpm on the limit with paddle shifters (7:30 to 8:30). Only question I have is, how often should the oil be changed

 

[badgx]

Mini update after unplugged-

Revs- feels more responsive, reacts quicker even on comfort mode.

Engine noise- very little difference, in fact no change in noise level. My engine was quiet to start with as mentioned previously.

Engine temperature- warms up a tiny bit sooner from cold, which means I can drive away sooner. But it's also warmer this winter.

Gearbox shift - no change in my personal opinion

Stop start inactive- MONITORING - car has been sitting, battery charge was low, 12.2v shown on my Pandora app

Fuel economy- MONITORING

This is how it sounds, not much has changed in terms of sound or noise level, before and after.

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[badgx]

Engine being interviewed

 

[f17ant]

There’s a part 2 now

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[f17ant]

Engine being interviewed

View attachment 151226

Trying to DM you mate but it won’t let me

 

[badgx]

Trying to DM you mate but it won’t let me

I've just DM'd. Hopefully should receive message

 

[badgx]

Anyone interested, go to Tasos channel, he is working live on an engine at this moment in time. Live streaming

 

[Benji1987]

So a few months have passed no since the last post, for those who have unplugged the solenoid how are you getting on? Increased oil consumption? Any more noticeable differences?

 

[badgx]

No other noticeable difference, no change in oil consumption but I haven't put enough miles this year to notice anything significant. An engine with high mileage may burn a bit of oil now an then compared to ones with lower mileage, so in all honesty, oil consumption may vary depending on wear and tear, usage etc

The M177 has a 2 stage oil pump too, which doesn't come as a surprise

 

[badgx]

Worth a watch

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[badgx]

Another video, worth a watch

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[UKGTC]

Does anyone know if this is the same on a AMG GTC with a M178 engine? Does it make any difference that I have a dry sump?

looks like a great idea and I would try anything that makes it last longer.

 

[UKGTC]

I’ve just been told by one of the tuners the M178 in the GTC and GTR with dry sumps are always in a state of pressurisation being supplied externally.
Does anyone have anything to add to this?

 

[badgx]

Does anyone know if this is the same on a AMG GTC with a M178 engine? Does it make any difference that I have a dry sump?

looks like a great idea and I would try anything that makes it last longer.

This mod for the m278/m157 has been researched by individuals on various forums across the pond. By unplugging the lead to the solenoid, the oil pressure is switched to a constant pressure of 4 bar, regardless of engine speed/load. These car don't seem to have oil pressure gauge to keep an eye on readings but you can get retrofit oil pressure gauges. Also these oil pumps differ in design compared to traditional oil pumps.

The M178 definitely has a 2 stage oil pump, with external oil coolers, which lives in the front end behind the bumper. There is not enough research around the oil pump for this engine and not heard of many engine failures. It's possible MB have learnt a lot from the m278/m157, and corrected any weakness in design, so the m178 failure rates are potentially much lower. Sorry, there hasn't been much response, the m178 is still a new engine, technically advanced with its hot v design.

Useful link below, worth a read

https://www.import-car.com/mercedes-benz-biturbo-v8-engine/

 

[ToeKnee]

Still not got round to doing this yet.

 

[UKGTC]

This mod for the m278/m157 has been researched by individuals on various forums across the pond. By unplugging the lead to the solenoid, the oil pressure is switched to a constant pressure of 4 bar, regardless of engine speed/load. These car don't seem to have oil pressure gauge to keep an eye on readings but you can get retrofit oil pressure gauges. Also these oil pumps differ in design compared to traditional oil pumps.

The M178 definitely has a 2 stage oil pump, with external oil coolers, which lives in the front end behind the bumper. There is not enough research around the oil pump for this engine and not heard of many engine failures. It's possible MB have learnt a lot from the m278/m157, and corrected any weakness in design, so the m178 failure rates are potentially much lower. Sorry, there hasn't been much response, the m178 is still a new engine, technically advanced with its hot v design.

Useful link below, worth a read

https://www.import-car.com/mercedes-benz-biturbo-v8-engine/

Thanks for the reply. Most information on the dry sump explains how it works but to date I can't find anything that explain in enough detail to understand if this modification would be useful. I have to assume being a dry sump the system is pumping oil at a constant pressure because it cannot rely on oil being splashed by the crank dishing through the oil in the sump. I read the GTR and GTC have the dry sump and in certain countries it was an option for the GTS, but so expensive they may as well just buy one of the former models.

I guess warming up the car properly before high loads and 6 monthly oil changes is the best way to go.