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AEL TDI: Single or Twin Mass Flywheel?

 
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Blaumann
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Post19-05-2009, 11:29    Subject: AEL TDI: Single or Twin Mass Flywheel? Quote

hello

A well-known person mentioned that you can identify whether a car has an EMS (Electronic Manual System) or a ZMS (Zero-Point Manual System) by looking at the gearbox. If it has an EMS, the sensor is mounted on the gearbox and there's a fork that goes into the gearbox. If it has a ZMS, the sensor is directly inside the gearbox.

Okay, here's the translation:

"Now, there's a real difference. On the February 1997 TDI model, I have the sensor on the transmission and a lever. On the later model (late 1997), I only have a hose going into the transmission, and definitely a dual-mass flywheel."

After I planned to use the parts from the "Schlachter" (a source for used parts) for the upcoming clutch replacement, I need to know if it's actually possible that my TDI has an EMS (Engine Management System).

"Thank you."
best regards, uwe
volvo 850 tdi - 2.5l AEL aut. bj.96 - bald 500000km
volvo v70n 2.4 - 2.5l 5Zyl Sauger bj. 2005


Translated on 04-09-2026, 9:18.
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christians
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Post20-05-2009, 20:49    Subject: AEL TDI: Single or Twin Mass Flywheel? Quote

To the best of my knowledge, all 5-cylinder TDI engines, starting from 1994 or with the renaming of the Audi 100 to the A6, have a dual-mass flywheel.
Gruß Christian
A6 BPP, Ex-A6 AKN (Gurke), Ex-Audi100 92 AAT (5Zyl.)


Translated on 04-09-2026, 9:19.
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Blaumann
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Post21-05-2009, 11:23    Subject: AEL TDI: Single or Twin Mass Flywheel? Quote

"Thank you!"

I heard from "the rolling community" that the Volvo only used the ZMS (dual-mass flywheel).
"However, since there are more people working on gasoline engines there, and with gasoline engines, the change from an EMS (Electronic Motor System) to a ZMS (Mechanical System) is related to the sensor cylinder on the transmission, or then with a ZMS central release mechanism, I was a bit confused."

In the TDI engine, the older fork and central release bearing configuration should have a dual-mass flywheel (DMF).

Sure, here is the translation of the text from German to English:

"Hello"
volvo 850 tdi - 2.5l AEL aut. bj.96 - bald 500000km
volvo v70n 2.4 - 2.5l 5Zyl Sauger bj. 2005


Translated on 04-09-2026, 9:20.
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