W201 190E Fuel Regulator

[stats007]

Is this a common failure item? It's either this or a fuel heater? that is leaking on a friends car. Not seen it so only had a quick look on the EPC.

 

[Will]

Hi Andy,

Any pics?

Will

 

[neilrr]

Is this a common failure item?

No.

It's either this or a fuel heater? that is leaking on a friends car. Not seen it so only had a quick look on the EPC.

I don't know what a fuel heater is. Linky to the Rooskie site diagram?

 

[Dieselman]

I'm sure there won't be a fuel heater on a petrol car, only diesels have them to stop fuel waxing.

 

[stats007]

That's what I thought hence me thinking it was the fuel regulator. I'll see what I can find out.

 

[grober]

What's the age of the car. A picture of the offending item would help. If its an early car it could be the warm up regulator. Its normally bolted to the cylinderhead. If its a later model it might be the electro-hydraulic regulator bolted to the side of the fuel distribution unit ( black unit with an electrical connection.

 

[stats007]

It's the black unit with an electrical connection.

 

[grober]

There's a couple of O RINGS which seal the unit to the metal body of the fuel distribution unit. I would start by replacing those.Don't overtorque the screws which fasten the unit to the alloy casting. part 38 here http://www.detali.ru/cat/oem_mb2.as...717.411412&CT=M&cat=504&SID=07&SGR=015&SGN=02 part no is 0129979748
http://www.detali.ru/cat/oem_mb2.as....412&VIN=*&CT=M&cat=504&SID=07&SGR=015&SGN=02

 

[stats007]

Thanks. It turns out it was this unit that has cracked so he's ordered a new one - £260!

 

[neilrr]

Yikes!

Ebay or someone breaking a 190E?

I'm breaking a 2.3-16 but don't know if it's the same part.

 

[stats007]

Different injection system isn't it? Worth keeping an eye on as the specialist he bought the part from seems to think it's a common failure item.

 

[Ian B Walker]

Yikes!

Ebay or someone breaking a 190E?

I'm breaking a 2.3-16 but don't know if it's the same part.

Just removed a blown engine from a 190 and still have the fuel distribution unit as in Grobers link if it is of any use.

 

[nick mercedes]

Thanks. It turns out it was this unit that has cracked so he's ordered a new one - £260!

That seems a bit rash, when there's no shortage of 190Es in scrapyards.

 

[stats007]

His wife didn't want a 2nd hand unit in case it leaked petrol on the engine and caught fire. Not sure it was worth arguing!