Hi
I was wondering if someone could comment on or confirm the following;
Car
E320 1996 W210 straight six petrol full service history in great condition approaching 300,000 km
I’d buy another one without hesitation
Car symptoms
Misfire under load
High fuel consumption usually I get 800 km out of a tank lately I’m getting 550 km from 80 litres
Lack of acceleration
Fuel starving pulsation
The issue
The car gradually developed the above symptoms
These are iridium spark plugs supposedly good for anywhere between 50,000 km to 100,000 km
I usually do all my car maintenance including plugs, but I wasn’t well and got a mechanic to do it
I admit I haven’t personally changed the plugs on this car before as I haven’t had it long enough
I've never come across anything like these except at a wrecking yard
I thought there was something wrong with the fuel pressure regulator fuel pump coil packs or leads
It didn’t occur to me to pull a spark plug until now
Changed all the plugs problem solved
Some notes
These plugs are 15 months old the car has travelled 20,000 km 50% at 100km/h the other 50% urban driving
The plugs are NGK
2 plugs have H73V stamped on them
4 plugs have M41K stamped on them
The plugs are probably from different batches (No big deal)
They all have significant rust staining on the ceramic
At least 2 of them are showing signs of rust on the metal body 1 worse than the other (rear plug)
Another mechanic said they were far more than 15 months old and look like they had done over 100,000 km
So what I really wanted was an opinion on is:
Do you think they were changed 20,000 km ago by the mechanic or not?
Do they look like 20,000km 15 month old plugs?
Is this normal?
I would be really grateful if someone can comment on this, thank you
I was wondering if someone could comment on or confirm the following;
Car
E320 1996 W210 straight six petrol full service history in great condition approaching 300,000 km
I’d buy another one without hesitation
Car symptoms
Misfire under load
High fuel consumption usually I get 800 km out of a tank lately I’m getting 550 km from 80 litres
Lack of acceleration
Fuel starving pulsation
The issue
The car gradually developed the above symptoms
These are iridium spark plugs supposedly good for anywhere between 50,000 km to 100,000 km
I usually do all my car maintenance including plugs, but I wasn’t well and got a mechanic to do it
I admit I haven’t personally changed the plugs on this car before as I haven’t had it long enough
I've never come across anything like these except at a wrecking yard
I thought there was something wrong with the fuel pressure regulator fuel pump coil packs or leads
It didn’t occur to me to pull a spark plug until now
Changed all the plugs problem solved
Some notes
These plugs are 15 months old the car has travelled 20,000 km 50% at 100km/h the other 50% urban driving
The plugs are NGK
2 plugs have H73V stamped on them
4 plugs have M41K stamped on them
The plugs are probably from different batches (No big deal)
They all have significant rust staining on the ceramic
At least 2 of them are showing signs of rust on the metal body 1 worse than the other (rear plug)
Another mechanic said they were far more than 15 months old and look like they had done over 100,000 km
So what I really wanted was an opinion on is:
Do you think they were changed 20,000 km ago by the mechanic or not?
Do they look like 20,000km 15 month old plugs?
Is this normal?
I would be really grateful if someone can comment on this, thank you