S-Prihadi

Gents,

My indie told me once he could not buy one of the door module ( if I recall correctly ) for an MB which I forgot which model, but at that time the car was under 12 years old or so.
I think it must be the right front DOOR ( RHD country ), which has the master power windows control.

Anyhow, MB Indonesia via my Indie told me that my special order for 1 of the 2 vacuum hoses for brake booster is no more in production !!!! Dugggh, my car is only 10 years old.
This hose uses special MB fitting at hose ends and it is plastic 100% !!

This is the hose MB stop making
In a RHD car of 2013 and up, the hose is a 2 piece, item #200 and #250. The #250 is what they stop making.
In a LHD car , it has always been single hose #200 only.

E400 W212.065







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A LHD version single piece #200. E350 with M276 engine




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This sucks big time. This is life/safety hose and not wiper fluid hose

A RHD version and an E400 , a total PARIAH / OUTCAST.


No, I do not have issue for now with the hose. I am replacing it as part of my 10 years preventive maintenance. https://mbworld.org/forums/e-class-w...rts-renew.html

S-Prihadi

The population count of models using this hose is VERY LOW, hence financially MB would not care.
Must be RHD CLS400, RHD E400 sedan and wagon only and must be RHD only.
I think no more than 10,000 cars combined worldwide if RHD of this 3 models using the M276.8** 3.0 Turbo engine.

DubVBenz

OEM Mercedes parts availability used to be the best in the business. Like most businesses, MB seemingly used Covid as an excuse to get rid of customer favorite long time loss leaders. Based off the cars coming out of Stuttgart these days, it looks like my generation has assumed control of Mercedes. Like many other storied institutions, once those born in 1980 and later take over, they completely transform, wreck and ruin all established customs, procedures and legacy functions. The great world cultural revolution (suicide) continues. Hopefully you'll get some chinese aftermarket support for it.

wheatswake

Mercedes no longer makes my key fob with the KEYLESS GO feature for my 2013 E550 coupe (LHD). The standard key fob is on "Last in Stock" meaning no more will be made once depleted. Crazy Mercedes can take this stance.

Rickman30

Planned obsolescence, my friends.

This means OEM better pick up the slack.

juanmor40

I could not agree more.

Though off-topic, I am always amazed when I hear kids complaining about history classes, and wondering what benefits knowing the past will give them. The education system is broken, and the new generation thinks they are creating something new (because they do not know anything better), but they are just repeating the mistakes of the past. So sad.

Quint22

Not exactly proprietary, used in a few different applications but would require taking measurements and sourcing the correct adaptation. Looks like very similar is used for fuel lines as well, have scene similar for transmission lines also.

I take no responsibility for the links I post, just a starting point.

https://www.aliexpress.us/item/22518...2usa4itemAdapt

https://www.fruugo.co.uk/car-fuel-li...15?language=en

good luck.

Quint22

Wanted to add that looks like low pressure side of system so not seeing braking pressures I think. Would have to look back at the booster setups but that looks like flexible hose and resistance fit on the hose side of things.

S-Prihadi

Quint,

Yes, it sure looks like those fuel type quick clip in your Fruugo link. Thank you.
Must take a closer look at the actual brand of the quick clip connector and get its model number. Its like me tracking down MB special order Hirshmann connector all over again

The hose I can substitute with a proper vacuum hose. Like this one : https://www.autosiliconehoses.com/si...ive-hoses.html
It wont be pretty like OE which is using a pipe and not hose for this vacuum .


ADD :

The connector at the vacuum PUMP side will be a challenge to find and it is unique male type and not a common female type like
the fuel connector.





Funny, such a hose barb fitting at vacuum pump, yet MB choose to use a hose end connector with MALE type sealing, using the ID of the vacuum pump hose barb and not the OD like how the one on the firewall/heat shield.

.


Firewall/heatshield side using its male pipe OD as sealing surface, so hose end connector is a female type using its ID & O-ring as sealing surface.
This connector is more robust by far for repeated clip-unclip cycle and it does seems the same type used for fuel.







.
That push-the-circle to un-clip the vacuum hose connector for vacuum pump side is prone to breaking. My intake duo-valve also uses such dumb-azz push-the-circle to un-clip and its broken already, weakened by heat.





Fuel filter hose end type connectors with quick clip, it is like the hose end of the vacuum hose firewall side, but much smaller.




So I must now find this connector...duggghh !!!!



I tried brand tracing, but I can't find any writing/stamping to trace the brand.
My fuel vapor hose set item #100 also uses this dumb-azz connectors, 2 of them.... the push-the-circle to un-clip

S-Prihadi

I think I can solve my problem
I took a look at M276.9 3.5NA and M278 vacuum pump, it is the same as mine. So the big fat hose barb fitting for brake booster vacuum system will be the same.

The difference is , ony M278 engine, be it LHD or RHD version, uses 2 vacuum hoses for its brake booster towards the vacuum pump and uses that male pipe at firewall, like my M276.8 3.0T but of RHD version.

M276.9 3.5NA be it LHD or RHD , does not use 2 vacuum hoses for its brake booster towards the vacuum pump.
M276.9 3.5NA uses vacuum to operate its intake manifold 2 stage flow flapper. So M276.9 car, its brake booster hose is not to vacuum pump directly, but it seems to the intake manifold.

==========

So I will buy LHD* ( *probably generic version as there is no L or R indication ) car version of its hose #250, only to take its both hose ends connector.

This is M278 #250 vacuum hose from firewall to vacuum pump , but has a Tee. M278, LHD version as reference





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That fat saucer shape plastic on top of this connector, could be a check valve. Which is actually good, so double check valve.





This is very cheap in USA. Only US$33 for this equivalent hose #250 of my car , MB Indonesia selling at worst would be 300% if special order 3 month for E550. No E550/E500 W212 with M278 were ever sold in Indonesia.
https://www.mbpartsexpress.com/oem-p...e-212430052964

So all I need to do later is source the vacuum ready ( stiff non collapsing wall ) silicone hose with suitable ID to custom make the #250 equivalent for my engine.

S-Prihadi

So this is how the M278 vacuum hose #250 from vacuum pump towards the brake booster interconnect at firewall is like, and where the Tee goes to :

Andre Cateb

Unfortunately is all around... COVID forced (to a certain extend) business to streamline their operations and o lot of parts manufacturer simply succumbed or focused their capability on newer products. With the general hype over electric cars that is going, I would bet it will only gets worst with time.