By now, the brake noises have been classified by using a variety of different words like judder, groan, moan, squeal, squeak, hum, etc. For simplicity, based on their frequency ranges, they can be grouped into 3 categories: judder (around 10Hz), groan (50 – 150 Hz) and squeal (>1k Hz).Brake creep groan noise is generated when a brake pedal is slowly released especially in an automatic transmission car which was initially stationary. The primary reason is a stick-slip behavior between the pads and the disc. Stick occurs when the pad and the disc move together with no relative movement between them, while Slip occurs when the brake force decreases and the wheel torque begins to catch up with the brake torque and eventually a wind up of the brake assembly causes a momentarily slip. Without further release of the brake pressure, the stick happens again and the cycle repeats. The noise and vibration due to this sustained stick-slip is called brake groan. A Multibody quarter car model was developed using a Multibody Simulations (MBS) software with data from Volvo Cars to simulate the Brake Groan phenomenon. The model contained a detailed brakes system and the quarter car front suspension system with all the suspension components modelled flexible (deformable). FE models were created for all the suspension components using an FE code. A Craig Brampton reduction was performed to get the modally re-duced linear flexible (deformable) bodies. These were then included within the MBS model, and also connected appropriately. 1st 7 Eigen modes and all the Fre-quency Response modes were included to consider the flexibility of the suspen-sion components. Contacts between the pads and the discs were defined using the contact stiff-ness / damping and the parameters for friction. Dynamic friction law was used where, a static (µstat ) and dynamic (µdyn ) coefficients of frictions, 0.5 and 0.4 respectively were used. Static (vstat) and Dynamic (vdyn) Velocities of 0.05 mm/s and 5mm/s respectively were used. The Brakes components on the other hand, eg. Brake pads, disc, calipers, piston etc. were modelled as rigid bodies. The aim of this work was to capture the stick-slip and understand the sound transfer paths as the brakes are slowly released and the vehicle is accelerated gradually. Results: Creep groan problems are generated as either vibration or noise, transmitted via a variety of paths and then radiated acoustically into the cabin. These are classified as “structure-borne” noise. Thus, the 5 main transfer paths can be shown as: - Path1: Knuckle -> Upper Control Arm -> Frame FRT MTG -> Body - Path2: Knuckle -> Upper Control Arm -> Frame RR MTG -> Body - Path3: Knuckle -> Lower Control Arm -> Frame FRT MTG -> Body - Path4: Knuckle -> Lower Control Arm -> Frame RR MTG -> Body - Path5: Knuckle -> Strut -> Body To analyze the attributes of creep groan, accelerometers were placed in the model and the results were plotted to post process and compared. Other results of interest were: - Accelerations at the Calipers - Friction Stick-Slip - Relative tangential velocity between pads and the disc