EBA – 01 29 2 410 796
BMW Installation Instructions
Retrofit kit number
18 30 2 410 797 M Performance silencer (B48 ECE, automatic transmission only)
18 30 2 349 670 M Performance silencer (B48 ECE)
18 30 2 411 186 M Performance silencer (B46 US)
The installation time is approx. 0.5 hours. This may vary depending on the condition of the vehicle and its equipment.
The installation time shown does not include any time spent on programming/coding.
The calculation of the total costs for the programming time must be factored into the calculation of retrofitting costs (no invoicing via warranty).
These installation instructions are primarily designed for use within the BMW dealership organisation and by authorised BMW service companies.
These installation instructions are intended for use by qualified specialist staff trained on BMW vehicles with the relevant expert knowledge.
All work must be completed using the latest BMW repair manuals, wiring diagrams, servicing manuals and work instructions, in a logical order, using the prescribed tools (special tools) and observing current health and safety regulations.
If you experience installation or function problems, restrict troubleshooting to approx. 0.5 hours for mechanical work and 1.0 hour for electrical work.
To avoid unnecessary extra work and/or costs, send an inquiry straight away to the technical parts support team via the Aftersales Assistance Portal (ASAP).
Quote the following information:
- Chassis number,
- Retrofit kit part number,
- A detailed description of the problem, – any work already carried out.
Do not archive the hard copy of these installation instructions since daily updates are provided via ASAP.
All illustrations show LHD cars; proceed similarly on RHD cars.
Special tools required
Table of contents
A M Performance silencer
B Fastening clamp
C Dummy flap actuator
D Tailpipe trim (2 x)
|The following components must be removed first of all||ISTA No.|
|Remove the backing foil from the M Performance silencer and remove any adhesive residue using a suitable cleaning product.||—|
Cut the standard exhaust system (1) at the counterpunch mark (2) using suitable equipment, deburr it and treat it with conventional BMW products to protect it from corrosion.
Remove the standard exhaust system (1) from the car as described in ISTA.
Now fit the dummy flap actuator C as described in installation instructions No. 01 29 2 412 923 to ensure easier access.
Push the fastening clamp B over the pipe (1) on the M Performance silencer A.
Install the M Performance silencer A on the car as described in ISTA.
Position the fastening clamp B over the two pipe ends as shown and secure it.
- Torca clamp (B48) 55 Nm
- Caillau clamp (B46) 33 Nm
Install the tailpipe trims D as described in
Installation Instructions No. 01 29 2 287 618.
Check the position of the tailpipe trims (1) with the contour (2) of the rear apron, centring and aligning them if necessary.
It must be ensured that the tailpipe trims (1) do not extend beyond the rear apron (2) (danger of burning!) during installation and while driving (thermal expansion of the exhaust system).
The retrofit system does not require programming/coding.
– Conduct a brief test (for leaks)