Injector and glow plugs?

[AANDYY]

Hi, Andy here, new member and Merc virgin
This is my 3rd post in a few minutes, really getting mi moneys worth

I read that some peolpe have strugled to remove glow plugs out of 10ish years old e300 w210 engines, is it applied to the injectors aswell, because if I get a car, 1998 w210 e300 3ltr diesel, I'll want to change plugs and injectors ready for the winter!

Thank you please.

Andy...

 

[nick mercedes]

Hi, Andy here, new member and Merc virgin
This is my 3rd post in a few minutes, really getting mi moneys worth

I read that some peolpe have strugled to remove glow plugs out of 10ish years old e300 w210 engines, is it applied to the injectors aswell, because if I get a car, 1998 w210 e300 3ltr diesel, I'll want to change plugs and injectors ready for the winter!

Thank you please.

Andy...

There's no need to change the injectors.

 

[AANDYY]

There's no need to change the injectors.

Ar, forgot to say, thinking of running on WVO or vegy, good practice to change them, how much are they?

 

[Number_Cruncher]

>>There's no need to change the injectors.

No, but, once they have over 100K on them (I'm not sure if this is the case for the OP), it is useful to have them checked for opening pressure, spray pattern and leakage. A poor spray pattern in particular can burn out new glow plugs in no time.

 

[AANDYY]

>>There's no need to change the injectors.

No, but, once they have over 100K on them (I'm not sure if this is the case for the OP), it is useful to have them checked for opening pressure, spray pattern and leakage. A poor spray pattern in particular can burn out new glow plugs in no time.

OP?

 

[gbjeppm]

Original Poster, in other words you

 

[nick mercedes]

OP?

Original Poster (you).

I'd still leave the injectors alone, even allowing for the veg oil.

And really unless the glow plugs aren't working, why change those either?

Those old diesels start well anyway.

 

[Smiley]

check the price of the injectors.....that will put you off changing them so quickly unless they really do need changing
Although I have noticed an improvement in mpg from my w124 e300d after putting new injectors in and letting them settle in (took about 10k miles which surprised me a bit) - car is now approaching 200k miles
The mpg is up overall about 2-3mpg so the injectors are going to pay for themselves after about 20k miles.

 

[Number_Cruncher]

>>unless they really do need changing

Yes, that's why I suggested a check of their performance first.

As pointed out by smiley, even though injectors are expensive, they can pay for themselves remarkably quickly. Putting the price for replacement injectors into context 2.5, maybe 3 tanks full of fuel.

 

[nick mercedes]

>>unless they really do need changing

Yes, that's why I suggested a check of their performance first.

As pointed out by smiley, even though injectors are expensive, they can pay for themselves remarkably quickly. Putting the price for replacement injectors into context 2.5, maybe 3 tanks full of fuel.

£195.66 (each) from MB

or

£102.04 (each) from Bosch?

8 tanks of fuel?

 

[AANDYY]

£195.66 (each) from MB

or

£102.04 (each) from Bosch?

8 tanks of fuel?

 

[AANDYY]

Am I right in thinking that if they are going there will be a lack of power and dodgy start ups?
Or is there something more obvious?

Thanks again

 

[Number_Cruncher]

>>£195.66 (each) from MB

or

>>£102.04 (each) from Bosch?

Most of the injector isn't really subject to wear, only the nozzle, and nozzle holders. These can be replaced for about £200 for all 6.

 

[AANDYY]

Is common for it to be trickey to remove the plugs-10ish years old car

 

[BlackC55]

Yes it can be

 

[Uberwagon]

On a Perkins diesel we once had to remove an injector by keeping the HP pipe connected and running at full load, it is not reccomended, the plastic cup we placed over it couldn't quite contain the force of the injector coming out

Dave!

 

[Dieselman]

On a Perkins diesel we once had to remove an injector by keeping the HP pipe connected and running at full load, it is not reccomended, the plastic cup we placed over it couldn't quite contain the force of the injector coming out

Dave!

LOL..
I helped a couple of stuck glowplugs out on a E300 by keeping the engine idling with a socket and ratchet handle unscrewing them.

Nice bang and flash...Make sure you stand out of the way..

 

[Dieselman]

Am I right in thinking that if they are going there will be a lack of power and dodgy start ups?
Or is there something more obvious?

Thanks again

Glowplugs will bring on the warning light, injectors will cause smoke, knocking and misfiring.

If you don't have those conditions leave well alone, they need nothing doing.

 

[Number_Cruncher]

>>Glowplugs will bring on the warning light

...and can also be electrically tested individually from the connector on the glow plug relay. Having individual glow plug wires instead of a bus-bar running along the connectors is one small, nay tiny, indicator of the engineering quality of these engines.

 

[jrggino]

E300 td 1999 Injectors

I just fitted new injectors to my e300 yesterday morning. I bought them at Camberley auto factors Gatwick Branch. I payed £170 for the 6 and they came with the injector/head seating washer. I initially bought a standard injector socket but it was a waist of time you need a special low profile one. I think it was DMan who sent me the link and i ordered one.Ok they were ok to fit, but you will need to replace the leak off pipes and the end plug for the last injector. Dont buy cheap leak off pipes as i did as the kit comes with a end plug made of rubber and it leaked. Buy MB parts its the flex hoes which goes between each injector. also my crankcase pipe split, this was the 90 degree part which sits in the head/cover i replaced this.make sure you suck any debree out i used a hose. torque tthem up as per torgue. when you start it dont over do it with the cranking, take your time. it will start, i did not need to loseing any injector pipes but you can to help it start. I have noticed its a little more noesy'er though dont know why. but runs smooth. hope this helps

Gino