Touareg R50 V10

Hi everyone.

I have a 2005 Touareg R50 V10 TDI and I want to change the idle speed from 650 to 800 RPM using VCDS. I've accessed the engine electronics menu, but the function is locked by an access code. Does anyone have a solution? This vehicle is used for towing, and increasing the idle speed would be very helpful, especially when braking at low speeds.

Thank you in advance for your response.

Hello,

In the very early TDIs with a distributor injection pump, there was an adjustment channel to modify the idle speed. Logging in with the code 12233 in the engine control unit unlocked the modification of these adjustment channels.

Unfortunately, this is no longer possible with current engines. You can try the procedure described above, and please let me know if it works.
If it doesn't work, unfortunately, your only option is to take your car to a chip tuner to directly modify the idle speed within the engine control unit's data.

Best regards, Rainer.

I doubt, if it's even possible with VCDS, to achieve a jump of 150 RPM. On my PD AJM engine, I believe it was around 50 RPM. I then modified the data set so that I could change the RPM by more than 50 using VCDS.

Hi Rainer,
Code accepted, but the control unit is not adopting the new setting. Engine electronics (01), adaptation channel 06.

Thank you for the feedback, I thought so. chli1976 has already mentioned a possible solution.

Best regards, Rainer.

ZR1_90 wrote:

I have a Touareg R50 V10 TDI from 2005

.

Good morning.

The R50 was not available in 2005.

Why would you want to reduce the idle speed on a 10-cylinder engine and then shift into first gear? Presumably, that would provide enough braking power... However, it definitely doesn't have a proper vacuum storage system.

Perhaps you should have the tandem pump checked, just to make sure it's still generating the full vacuum.

I have no idea what you're talking about, but here in Tyrol, this method is definitely sufficient to drive down any mountain pass, even with a 3.5-ton trailer.

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

"Sg" is an abbreviation for "singular." It is used to indicate that a noun or pronoun is in the singular form.

For example, the sentence "The cat is black" uses the singular noun "cat." The sentence "He is tall" uses the singular pronoun "he."

In German, the singular form of a noun is usually indicated by the article "der" or "die." For example, the singular form of the noun "Mann" (man) is "der Mann." The singular form of the noun "Frau" (woman) is "die Frau."

The singular form of a pronoun is usually indicated by the pronoun itself. For example, the singular form of the pronoun "ich" (I) is "ich." The singular form of the pronoun "du" (you) is "du."