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#1
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tdi question...no glow plugs?
okay i have to admit i am stumped.
i was talking to a fella who works at checker and he has a tdi. i was asking for glow plugs and he said he was glad he didn't need them. what starts these things? is it the same with the cdi?
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currently [1981 300 td tdidi 165500 dark brown/palamino-Brownie-mine-3k miles of ownership 1983 240d 162+++ Anthricite grey w/ henna red interior and hella lights-wifes car-Red the above two cars are for sale and can be seen on the cars for sale thread here. pix also available. 240d-144+ Manilla Yellow w/ palmino interior-greasecar kit-Blondie-the college kids car 23" gt 21 speed still on original tires-still got the nubs 21" khs tandem |
#2
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He's wrong, his car does infact have four glow plugs. He'll find out when they fail....
Even the huge V10 toureg tdi has 10 glowplugs (wshew)
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#3
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Don't quote me on this, but from my limited research if I remember correctly the TDI does have glow plugs, but they're not used unless the temp is below a certain value, something like 48F. Better heat conservation is one advantage of the direct injection design.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#4
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Even when temps are in the low teens. The glow plug light only comes on for a second or 2 at most.
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1999 E300DT (131,800) 154,000 Black on Black SOLD 2006 CLK 500 coupe Capri Blue on Grey (zoom,zoom) 47,000mi 04 VW TDI Passat 80,000mi (Techno) How to eliminate oil dependency through market-driven approaches. “We could cut oil use in half by 2025, and by 2040, oil use could be zero,” The Sound of Diesel Speed Ode to MB |
#5
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VW TDis are equipped with 4 glow plugs for the engine (1 per cylinder ) and 3 auxiliary glow plugs that heat the coolant when called for by the ECu.
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#6
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He can probably just hop in and crank it without having to wait for the GP's. When I drive my boss's new (like and '04) Chevy diesel truck, I always wait for the light to go out out of habbit. On the other hand, he hopps in and cranks it without waiting and I'll tell you, it starts the same no matter if you wait or not. I know its not a Merc but I'm guessing they're both DI.
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Seth 1984 300D 225K 1985 300D Donor body 1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!! 1980 300SD 311K My New Baby. 1979 BMW 633csi 62K+++? Dead odo |
#7
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I believe the specs are below 7 degrees C and the glow plugs are used. Above that temperature and the light cycles just to show you that it works. I currently have the head off my Jetta and had just taken some pics of it. Here is a picture close up that shows the two valves, fuel injector and glow plug. Pretty neat, really.
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1991 MB 300D 2.5 Turbo (207000km) (now gone) 1993 Audi 100 CS Quattro (300000km) 1999 VW Jetta TDI (290000km) 2002 Audi A6 3.0 Quattro (150000km) 2005 MB E320 CDI (34000km) |
#8
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My neighbor has a 2001 Jetta TDI which starts immediatly even if it's below zero F. He doesn't have to wait, it's just like starting a regular gas engine. Is it just because I have a '77 MB model that it takes a while to start in the cold, or do all MB diesels require a certain glow time? You would think Mercedes, being versed in luxury and convinience, would have the same engineering.
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#9
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Quote:
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#10
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Older MB diesels may take longer to start when cold, but they sound cooler, last longer, and are generally more awesome than the vw tdi's
*Puts flame suit on*
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#11
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Quote:
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-------------------------------------------- 1960 MB 190Db w/ full sunroof 1985 Toyota Pickup 2006 Honda Odyssey EXL R&N 2001 VW Jetta GLS TDI |
#12
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I completely understand that 1977 technology cannot be compared to 2001 technology. However, do the newest MB Diesels start like a normal gas engine (like the TDI) or do they still require a limited glow time?
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#13
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I love'em all, but from your statement, I'll assume you have not driven a 04 or newer TDI
I'll race ya for pink slips with my TDI Quote:
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1999 E300DT (131,800) 154,000 Black on Black SOLD 2006 CLK 500 coupe Capri Blue on Grey (zoom,zoom) 47,000mi 04 VW TDI Passat 80,000mi (Techno) How to eliminate oil dependency through market-driven approaches. “We could cut oil use in half by 2025, and by 2040, oil use could be zero,” The Sound of Diesel Speed Ode to MB |
#14
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I guess I answered my own question - up until last year when the CDI was introdcued, all MB diesels were indirect. The point in my original message then holds. VW and American made diesels perfected the glow system before MB - due to the fact of direct injection diesels.
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#15
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Quote:
__________________
currently [1981 300 td tdidi 165500 dark brown/palamino-Brownie-mine-3k miles of ownership 1983 240d 162+++ Anthricite grey w/ henna red interior and hella lights-wifes car-Red the above two cars are for sale and can be seen on the cars for sale thread here. pix also available. 240d-144+ Manilla Yellow w/ palmino interior-greasecar kit-Blondie-the college kids car 23" gt 21 speed still on original tires-still got the nubs 21" khs tandem |
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