Differences V6 3.6 FSI 260PS in EOS vs. 300PS Passat

Hello everyone,
My wife is interested in the very rare EOS 3.6 FSI with 260 horsepower, which was only available in the 2010 model year, or the Passat CC 3.6 with 300 horsepower. I have looked online for information, but I haven't found anything useful about the specific details of how the engines differ. The specifications are largely identical, including the VIN numbers. Therefore, here is my question to VW insiders: what is the clear difference in performance that results from this?
It seems that the problem is primarily related to the engine electronics.
Therefore, the EOS seems to be quite throttled, especially since it reaches its rated power at 6000 RPM?
Thank you in advance for your help.
Harald

What is the registration plate for the EOS? There were approximately 4 or 5 different engines, 2 of which are actually identical and only differ in the software.

Can compact (VR) FSI engines only be refueled with 95 RON (Super) fuel in exceptional cases? 98 ROZ are prescribed, even though the wiki says something different.
The weaker 2010 CDVA in the EOS has Euro 5. While the BWS in the Passat CC has a EURO4 engine with 299 hp.
That's probably it. Whether the 40 hp is worth less due to Euro 5 standards, nobody will really notice.

BWS = Passat and Emission limits according to EU 4 / EU 5

From 2011, "only" 280 hp. Whether the 300 hp figure is accurate for the 2010 model is uncertain. Most people don't even notice the difference. With poor-quality fuel containing a lot of bio-components, the engines will inevitably fail.

Hi

Why is this?

Thank you for your feedback. The engine code is CDVA. I just saw that the exact same engine is also used in the Skoda Superb. It seems that the engine is actually being throttled somewhat through software to meet EURO5 standards. With this, the engine should still have a lot of potential for improvement through software tuning, what do you think?
However, I haven't found anything, probably because the model is so rare.

Hi,

Quote:

This should mean that the engine still has a lot of potential for further tuning through software, what do you think?

There isn't much to gain, the emission standard must be maintained for roadworthiness.
Price and achievable performance are out of proportion here.
My Tip: Buy a car with few kilometers, use the required/good fuel, and also regularly use the specified engine performance, and maintain the service schedule. You're already faster than the rest, even without a chip.

Hi,
I just signed the purchase agreement, so now I have the EOS 3.6. I got it from a retiree from the Ruhr area, it has only 15850 km on it and is really in perfect condition, both the engine and the appearance. It was first registered in 12/2009. I can pick it up in 2 weeks.
In the meantime, I have at least found an offer for the Skoda Superb, which is identical to the one recommended by the engine manufacturer, from Digi-Tec. I don't know if I'm allowed to post this link here, but here are the details:
Skoda Superb 3T (06/08 - )3.6 V6 4×4 191 kW / 260 PS, 350 Nm (Standard)

Performance Improvement
Engine Displacement 3580 ccm
Torque: 395 Nm at 2500 RPM
More power: 41 PS / 30 kW, 45 Nm
Top speed: 256 km/h
Consumption (Difference) 0 to 1 Ltr.
Price: 899.00 Euro

Apparently, Digi-Tec only achieves 41 hp through modified software, what do you think about that?
Is the company reputable?
Are there perhaps other (better) providers?
LG

Buy the car and drive it first, before you start asking such pointless questions.

hharry wrote:

Hello everyone, My wife is interested in the very rare EOS 3.6 FSI with 260 horsepower... Thanks in advance for your help. Harald

Awesome!
And now she still needs 41 more horsepower!
Oh, how much I would love to drive with her on the empty highways in the north or through the quiet little villages and over those fluffy Highland cattle
haithamina

Just ask them if they can do it, and that's all there is to it.
However, I would also have to say that if I already knew before the purchase that I needed significantly more performance, I would have continued searching...

I picked up the car last week. The previous owner is retired and apparently only used the EOS for grocery shopping, except during his vacation . Nevertheless, it runs quite well even without performance upgrades. With the winter tires, it's only possible to go up to 240 km/h, but it gets there relatively quickly, corresponding to approximately 255 km/h according to the speedometer, as measured with GPS. The 6th gear is very long, at a speed of 250 km/h, the engine reaches 4800 rpm. The fuel consumption is also currently within reasonable limits; on the trip from Dortmund to Oldenburg, it consumed an average of 9.4 liters, although this was due to the weather and a moderate driving style. I'll report back in the spring once the summer tires are fitted.

hharry wrote:

The previous owner is a retiree and apparently only used the EOS for grocery shopping, besides the annual vacation .

...so, ich würde ihn jetzt also vorsichtig anlaufen und nicht sofort alles von ihm verlangen.

oh, das ist ja lächerlich... sofort die volle Leistung freigeben, scheint ja von den Geschwindigkeitangaben her verbesserungswürdig...

After a long break, I'd like to provide an update on this thread. I took my EOS to Z**** (c*****-c****) in Durlangen for a software tuning. They offer a specific tuning for the 3.2 and 3.6L VR6 engines that addresses some weaknesses in these engines. The whole process was quite involved and took almost a full workday, involving several logging runs. It turned out that my ECU version could not be programmed via OBD, but had to be opened and directly programmed. The DSG was also modified and now shifts much smoother. Most importantly, the annoying shifting back and forth is now gone, and you can control the shifting with the accelerator pedal much better. This means that the DSG is now switching to D-mode much earlier, and the S-mode is much more enjoyable to drive. The engine revs much better, especially noticeably from 4000 rpm. According to the log data, the throttle was already slowly closing from 4000 rpm with the standard software. Before, the power decreased from 6000 rpm, but now it increases noticeably here. The rev limiter is now at 7000 rpm, as with the R36. The promised increase of around 40 hp, or around 300 hp like the R36, could also be achieved. However, a power measurement is still pending. In addition, I have changed the intake air routing, as described in the TT Forum, so that no air is sucked in from the engine compartment anymore. I recently took a trip with GPS and measured a speed of 268 km/h on a straight stretch at 6650 RPM, which matched the speedometer's reading of 275. Previously, according to the speedometer, it was around 260. The engine was tuned for 102 octane, Super+ also works with some compromises, and Super95 is only used as a last resort. Overall, I am very satisfied with the change, especially since the fuel consumption has also decreased by about 1.5L/100km in the long run (naturally also due to the higher energy content of 102 octane fuel). The current fuel consumption is 9.4L/100km, which I think is really acceptable given the performance.

EDIT by DBär: Thanks for the feedback, aBär, please don't make any advertisements, ok?!