What does the system do?
After a cold start, the engine can deliberately run differently from warm idle. This supports exhaust-system warm-up and influences sound.
Additional options explained
Cold Start Noise Reduction – Start-up sound
Why a cold-start sound adjustment also involves catalyst warm-up and how to distinguish normal strategy from a fault.
Illustrative imagery, partly AI-generated. Components and their arrangement vary between vehicles.
Function, changes and requirements
What does the option mean?
The option concerns this phase on supported software. It is not a general reduction of all engine noise or a repair for mechanical rattling or wear.
What do we check on your vehicle?
We distinguish normal cold-start strategy from actual faults, then assess warm-up, stable running and emissions implications. The exact control unit, software version, fitted hardware and intended use determine the scope. A configurator entry does not replace this assessment.
Frequently asked questions
Does every vehicle support this function?
No. We check the vehicle, control unit and software against the actual supported function. Include existing faults and modifications. Transmission functions also require the exact gearbox version.
Does selecting an option approve its use?
No. Changes to emissions, noise or protection functions can affect legal use and operating safety. This page promises no road approval; diagnosis and a permissible repair are considered first.
Explore your next step
A better drive. With the right software.
Custom ECU calibration and professional file service directly from RG-Racing.
Learn more →Diagnostics and software analysis from one source
Send a photo of the message and any fault codes. We review the information and discuss what should be checked next.
Learn more →Does this option suit your project?
Tell us the vehicle, engine, gearbox, modifications and your goal. We clarify the precise scope before preparing an offer.
Enquire about this option →