Description
Restore proper active exhaust valve operation after an exhaust flap or valve delete with the Weistec Mercedes Active Exhaust Flap Simulator. Designed for Mercedes-Benz vehicles equipped with electronically controlled active exhaust systems, this simulator provides a reliable solution when the factory exhaust flaps are removed, replaced, or permanently held open as part of an aftermarket exhaust installation.
Modern Mercedes-AMG exhaust systems use electronically controlled exhaust valves that are continuously monitored by the vehicle's control modules. When the system detects that an exhaust flap is missing, mechanically blocked, or unable to complete its required movement, the vehicle may register exhaust flap faults and can reduce engine performance as a protective measure.
The Weistec Exhaust Flap Simulator allows the factory exhaust flap actuator to remain connected and operate normally while the exhaust flap itself is deleted or otherwise removed from service. The actuator is mounted to the simulator and can move freely, allowing the vehicle's control system to detect normal actuator operation and avoid faults associated with a missing or mechanically restricted exhaust flap.
This makes the simulator particularly useful when installing aftermarket exhaust systems, performing exhaust valve deletes, or configuring an exhaust system to remain open for a more aggressive exhaust sound.
How the Weistec Exhaust Flap Simulator Works
The factory exhaust flap actuator is removed from the exhaust valve and installed onto the Weistec simulator. The simulator provides the actuator with a mechanism that allows it to move through its normal operating range without being connected to the original exhaust flap.
By allowing the actuator to operate freely, the simulator is designed to replicate the expected mechanical operation of the factory exhaust valve system. This helps prevent exhaust flap-related faults that can occur when the original valve is removed or mechanically restricted.
The exhaust flap itself can then be locked open or removed depending on the exhaust configuration and application.
Key Features
- Designed for Mercedes-Benz active exhaust systems
- Provides a solution for exhaust flap and valve deletes
- Allows the factory exhaust flap actuator to operate normally
- Helps prevent exhaust valve-related diagnostic faults
- Designed to maintain proper actuator movement during system self-checks
- Compatible with aftermarket exhaust and muffler delete applications where supported
- Helps eliminate issues caused by mechanically restricted or removed exhaust flaps
- Allows exhaust valves to remain open or be removed depending on the application
- Compact, purpose-built design from Weistec
- Sold individually
Benefits
Designed for Exhaust Valve Deletes: Ideal for applications where factory active exhaust flaps have been removed or replaced during an aftermarket exhaust installation.
Maintains Actuator Operation: The factory actuator remains electronically connected and is allowed to operate freely, helping the vehicle recognize normal actuator movement.
Helps Prevent Exhaust Flap Faults: By simulating the mechanical operation of the factory exhaust valve, the device is designed to address faults associated with missing, blocked, or mechanically restricted exhaust flaps.
Ideal for Aftermarket Exhaust Systems: A useful solution for Mercedes-Benz owners installing exhaust systems that eliminate or modify the factory active exhaust valve configuration.
Preserves Factory Actuator Function: Unlike simple electrical plug-in simulators, the Weistec design uses the factory actuator and provides a mechanical interface that allows it to move normally.
Common Exhaust Flap Faults
Active exhaust valve problems can result in diagnostic trouble codes related to exhaust flap operation, actuator movement, mechanical adaptation, or electrical operation. Potential fault codes may include:
- P13C2 / P13C271 / P13C204 – Exhaust flap structural malfunction or blocked actuator
- P13C273 – Right-side exhaust flap actuator not opening correctly
- P13C278 – Right-side exhaust flap mechanical adaptation or adaptation limit fault
- P140473 – Left-side exhaust flap mechanical or electrical malfunction
- P13C21E – Exhaust flap resistance or operating voltage outside the permissible range
Important Notes
- Sold individually.
- Some Mercedes-Benz applications may require more than one simulator.
- Exhaust flap actuator is NOT included. The factory actuator is reused.
- Vehicle compatibility and the number of simulators required depend on the specific exhaust configuration.
- Professional installation is recommended.
- Always verify vehicle and exhaust-system compatibility before installation.
Product Details
- Brand: Weistec
- Product: Mercedes Active Exhaust Flap Simulator
- SKU: 01-000-02685-2
- Application: Mercedes-Benz active exhaust systems
- Quantity: 1 simulator
- Actuator: Not included; factory actuator is reused
Upgrade your Mercedes-Benz exhaust configuration with the Weistec Active Exhaust Flap Simulator, a purpose-built solution for maintaining factory actuator operation when performing active exhaust valve, flap, or muffler deletes.
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
