I am getting conflicting information from two different dealerships on which fuel cap is correct for W210 turbodiesels. I compared the fuel cap on my 1999 E300d to another (1998) E300d this weekend and found the caps are different.

• The 1998 car has a fuel cap with P/N 140 470 00 05 (no tether, no rotating collar).
  
• My 1999 car has a different cap with P/N 140 470 03 05 (rotating collar, rubber tether line).
  
• Just for comparison, our 2002 E320 wagon has P/N 215 470 01 05 (rotating collar, rubber tether line). This fuel cap looks virtually identical to the cap on my 1999 car.

I went to the dealer yesterday and they insist the 1998 car already has the correct fuel cap (no tether, no rotating collar) and my 1999 car has the wrong fuel cap.

Can anybody help ID these various caps?

Thanks.

__________________
1998 W210 diesel (wiped out by a texter)
Baum spring compressor "for rent"

My 1999 has the tether. Though the cap actually had a 9-98 date on it. Car is 11-98 if I recall.

I need to replace mine it weeps, wonder how much fuel I am looking out the back end.

__________________
raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg

My 99 has a cap with a (broken) tether. Manu date was 7/98 if I remember correctly.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

As long as it keeps the fuel in the car is all that should matter, isn't it? My old 300CD had a BMW cap that a PO stuck on there , I lived with it for many years until I got a MB cap on there...

(not the outlook of a purist )

Terry and rambow, thanks for taking the time to reply. I appreciate it.

Can somebody with a 1998 diesel check in and let me know what's fitted to their car?

Thanks.

Is it conceiveble the 1998 and 1999 cars require a different cap

__________________
1998 W210 diesel (wiped out by a texter)
Baum spring compressor "for rent"

the only thing i really know is that a chevy diesel needs a vented cap or it runs like poop i assume (ass_of_u_and_me) that is true of all diesel vehicles

__________________
commercial fisherman diesel in my blood in my boats trucks and Dear old Dad has had me drivin them since i got my first license in 1968
1986 300 SDL 427654
1999 Chevy Crew Cab Dually 225423
1986 300 SDL 287000 Dad's
1987 190 Turbo 158000 Mom's (my inheritance)

Yes, that makes sense. I clearly recall the stories of people fitting a gasser fuel cap to a diesel and the car stopped running.

You are right. The correct one comes with NO tehter. I went thru the same stuff myself and gave the dealership the part number that came off the car and got the tether.

__________________
01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

Maybe MB did one of there part updates? Is 140 470 00 05 still availible? What does the dealer get with that part number?

I wouldn't be surprised if it was replaced with 215 470 01 05.

__________________
2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

That is exactly what I was thinking, I know when i've replaced parts in the past, many of them were updated parts with different numbers. I would think having a filler cap, with a tether is the way to go, since it can be easy to misplace a cap, and drive off with forgeting to put it back on...

That is just it. My cap was from a gas car or so it said.

__________________
01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

What I do know is that in 2000 the W210 changed a lot, and MB stopped carrying parts for things that were updated. Like the dome light for example.

If that old part number is put into the dealers computer, it should either pop up as good, or get bounced to a new part number.

__________________
2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

So, does the non-tethered cap have a holder built into the door? Does the tethered cap not have a holder built into the door?

If this is so, does that mean it was cheaper to have a tethered cap, than to have a non-tethered cap with a door holder; and Roger Smith told them to go for it?


Edit: I see by the pics on page 2, that there is a tether and a cap holder. The tether is for those who can't figure out what the capholder is for? I for one do not want any of my caps dangling around, getting fuel all over the paint.

__________________
It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

Now I've looked at the part number.

My 1999 car a P/N 140 470 03 05 (rotating collar, rubber tether line), same as what yours shows. Probably is the original one for both of us. Why are you looking at changing yours?

Mine always leaks, put a new gasket on, leaks less. Guess I should just buy another one and see if that helps.

__________________
raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg