2019 Mercedes-Benz AMG GT63S

Complaint Customers may notice a check engine light in the instrument cluster and may also complain of rough running. One or more of the following DTCs may be stored in the ME control unit (N3/10): P227900 ‑ A leak was detected in the intake air system P152B00 ‑ A leak was detected in the intake air system (cylinder bank 1) P152C00 ‑ A leak was detected in the intake air system (cylinder bank 2) Cause Root cause varies Remedy Check the intake and the evaporative emissions system for leak tightness. Should you identify any leaks, repair them, clear the DTC(s) and test drive the vehicle. If the codes do not return, release the vehicle back to the customer. If the codes do return, then perform the tests located in the attached PDF titled "air leak work instructions". Then, open a TIPS case with the following information: • Initial quick test • ME control unit log • Detailed results (including XENTRY print outs) of the tests performed in the "air leak work instructions"

Complaint Slight creaking noises when steering. Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the sleeves for noise; see attached video. If necessary, apply lubricant to the sleeves.

Complaint Noises in the steering column area when steering. See example file in the attachments area: "MRSM‑Schleifgeräusch_SCCMGrindingNoises. MOV". Cause Under analysis. Remedy Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driver footwell or do they tend to occur in the area of the steering column switch module (MRSM/SCCM)? If the noises occur in the area of the MRSM/SCCM, work through the following points: ‑ Loosen screws of the MRSM/SCCM and steering wheel, re‑align the MRSM/SCCM, and re‑fasten the screws (see WIS). Sometimes there is stress at the MRSM/SCCM and noises occur. ‑ If noises continue to occur, swap the MRSM/SCCM into a vehicle without any (noise) complaints. ‑ If the noises occur with the MRSM/SCCM complained about when it is in the vehicle without a complaint (donor vehicle), the MRSM/SCCM can be replaced. ‑ If noises also occur in the customer vehicle with the MRSM/SCCM from the reference vehicle, the MRSM/SCCM is not the cause and must not be replaced. Notes: ‑ When installing the MRSM/SCCM, make sure that no damage occurs! ‑ If the noise is due to the steering wheel (see attachment "Lenkrad‑Schleifgeräusch_SteeringWheel‑GrindingNoises.mp4"), please use LI46.10‑P‑077313. ‑ Only disassemble and mount all component parts in the "straight‑ahead position" (see also WIS). ‑ Please refer to this LI in the "Notes" section of the warranty claim!

Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration is most likely due to excessive lateral runout on the rotor or hub/wheel bearing, the system as a whole needs to be checked for other possible contributors. 1. Prior collision damage. 2. Excessive vehicle sitting times without rotating components. 3. Wheel bearing/hub lateral runout. 4. Wheel mating interface has been overtightened (did not follow WIS torque procedures). 5. Mating interfaces have been excessively modified (painted, gouged, bent, etc...). Remedy Read through the entire attached worksheet prior to performing. After performing, please review the final page and perform work accordingly. NOTE: This document is not pre‑authorization or otherwise dealing with warranty. This is intended for diagnostic purposes only. If there are any questions on how to proceed OR The work sheet has been performed and the vehicle has returned with the same concern. Please perform the measurements as seen in the worksheet again and open a TIPS case to the Body, Chassis, and Entertainment team.

Complaint Red coolant warning in instrument cluster. Fault codes U019F00 or U019F87 current/stored in MRG1 control unit. Cause Various causes Remedy Perform guided test for fault code U019F with XENTRY diagnosis. Verify the following connections are clean and tight. Correct any problems and retest pump actuation: ‑12V plug at M75/11 ‑48V plug at M75/11 ‑48V connector X192/4 ‑Connections at 48V fuse box F153/2 ‑Sockets 1,2, and 5 at connector 2 of MRG1 control unit ‑M75/11 circuit 41 ground If actuation and above connections are OK, but resistance between M75/11 and engine block is less than 2 ohms or heat shield touching coolant pump, proceed with below steps. 1‑Modify engine insulation per attached instructions. 2‑Remove engine control module and measure continuity within control unit between connector 2 pin 1 and connector 6 pin 2. 2a‑If open circuit is found, replace engine control unit (MRG1) and perform initial startup. Refer to XENTRY parts information group 54/054 item 300. 3‑Clear faults and verify M75/11 operating normally.

Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary, create a TIPS case with an informative video as an attachment. Note: Please refer to this document in the warranty claim and, once diagnosis is completed, select the damage code depending on the component part that is causing the issue. • If the noise stops when the door trim is removed, please proceed in accordance with LI72.10‑P‑067691. Information: In this case, do not use a damage code for the speakers in the warranty claim!