Clutch slipping on ASZ engine

Hello,

Great that this forum is now open to people who are not so technically proficient!

Okay, here's the translation:

Now, to my question. I drive a tuned ASZ engine (117 kW, 360 Nm). For a week now, the clutch has been slipping in gears 4-6 (starting at approximately 80% full throttle).

It might resolve itself when it gets warmer, but the clutch needs to be replaced now anyway. VW naturally rejected the warranty claim; I've submitted a request for goodwill consideration, but I don't think I'll be successful.

I have received an offer from Sachs for an upgraded clutch kit (different friction material, stronger pressure plate). It is not a sports clutch.

Okay, here's the actual question: Do you think the dual-mass flywheel also needs to be replaced? What are your experiences with that?

According to. VW: "In most cases, this part does not need to be replaced."

Note: The vehicle has been driven extensively on the highway; it has been driven hard uphill; it has encountered many inclines; therefore, I don't think the issue is related to oil in the clutch...

Best,
Mark

hello

It would be interesting to know how many kilometers you've driven with the 'chip' installed. Did you have a chip tuning modification done, or is it a separate module?

What is the total mileage of the car?

Who did the chip tuning? In what I'll put simply as 'Wald and Wiesentuning' (a somewhat derogatory term implying amateurish or excessive tuning), it's quite possible that the clutch could start slipping after just the first few kilometers due to torque spikes. The same thing can, of course, happen with some tuning boxes as well.

What's happening in the lower levels, nothing?

80% throttle, the RPM range would be interesting.

Have you ever done a clutch quick test?

Whether the ZMS (flywheel) needs to be replaced or not can be determined when the clutch is being removed.

Further damage or contamination will only become apparent once the device is disassembled.

Peter.

schaeffermk wrote:

I have received an offer from Sachs for an upgraded production clutch (different friction material, stronger pressure plate). It is not a sports clutch.

Could you please provide some details? Part numbers, prices, source of supply... IMO, this would also be interesting for other people.

Quote:

Now, the actual question: Do you think that the dual-mass flywheel also needs to be replaced? What are your experiences with that? According to. VW: "Normally, this does not need to be replaced."

If even VW (despite the general focus on revenue) says something like that, it's probably fundamentally true.
Ideally, when replacing the clutch, it would be best to have a new dual-mass flywheel (DMF) readily available, which can then be installed depending on the condition of the old one (or not installed at all). This is because a significantly increased and frequently used maximum [torque/power]... Torque can certainly put a strain on the dual-mass flywheel (DMF).

Quote:

The vehicle has been driven extensively on the highway; a lot of acceleration on hills; many inclines; therefore, I don't think it's likely to be due to oil in the clutch...

How did you arrive at this conclusion?

Hi,

"The chip tuning was performed by Hauser-Elektronik...www.hauser-elektronik.de... Approximately 20,000 km were driven with the tuning. The total mileage is 55,000 km. I haven't noticed the slipping in the lower gears; possibly I haven't given it as much gas in those gears. The RPM range in which the slipping occurs is approximately between 2,300-2,900 RPM... then it often engages again."

The tuning cost 599.00 EUR (special price)... In the vehicle registration document, it states "Performance enhancement, Company Name". "********" is registered; for whatever reason... I am absolutely satisfied with the vehicle's performance (except for the slipping clutch) ..

130 hp => 160 hp; 310 Nm => 360 Nm.
Unfortunately, I don't have any DZR values, only acceleration figures: 0-60 km/h (0-37 mph) in approximately 5.8 seconds, and 80-120 km/h (50-75 mph) in approximately 7.2 seconds.

The vehicle doesn't produce any soot at all, and the annoying jerking when starting slowly (e.g., in traffic) is completely gone after the tuning... overall, it has a very dynamic acceleration. Unfortunately, I don't have a VAG-Com.

Adding that there definitely isn't any oil in the clutch, I meant that I've accessed the extra power (approximately 21%) several times before, and therefore I'm relying on an actual... Clutch problem, likely due to... on the route Bruchsal-Stuttgart (A5/A). There are also many inclines, and I often had to accelerate, which is when the slipping first occurred.

I'm hoping I won't have to replace the dual-mass flywheel (DMF). My stepfather (who's a "Porsche mechanic") said that, in an emergency, he might be able to have the "old" DMF resurfaced. The price for a new DMF from VW is, in any case, 410 euros.

Best regards, Mark.

schaeffermk wrote:

The chip tuning was performed by the company Hauser-Elektronik...www.hauser-elektronik.de...k

I actually meant details about the clutch being offered.

Because something like that is considerably rarer than chip tuning offers .

Hello,

aho....embarrassing ...then here are the details about the clutch:

www.sachs-handel.de


SACHS Part No. 3000 846 201.
Clutch kit.
Diameter [mm]: 240
Number of teeth: 23.
Individual parts, see parts list:
3082 306 533 (Pressure plate, clutch / 1 piece)
1878 052 239 (Clutch plate / 1 piece)
4200 080 060 (Grease (high-performance grease) / 1 piece)
Alternative repair kit: 3000 990 043.
Without any reservations.


"This (standard) version costs 290 EUR. Upon request, I was offered, as mentioned, a reinforced version (different clutch lining + stronger pressure plate) for a price of 410 EUR... without a dual-mass flywheel... but it's not a performance clutch... performance is 30% above the standard version, according to..." Sachs....


Best,
Mark

schaeffermk wrote:

"This (standard) version costs 290 EUR. Upon request, I was offered, as mentioned, a reinforced version (different clutch lining + stronger pressure plate) for a price of 410 EUR... without a dual-mass flywheel... but it's not a performance clutch... performance is 30% above the standard version, according to..." Sachs....

Thank you for the details .

I would think carefully before using a clutch without a dual-mass flywheel (DMF), because it doesn't just provide comfort; it also reduces the stress on the crankshaft caused by high torsional loads (at high torque levels).
With the ZMS (presumably a suspension system), the current peak bending moments are absorbed by the ZMS springs. Without the ZMS, the KW (likely a shock absorber or other component) has to absorb everything in the form of torsion.

Therefore, a dual-mass flywheel (ZMS) is likely even more important with an engine that has increased torque than it is with the standard power output.