在濟南復雜的路況環境下，奔馳汽車的輪胎作為直接接觸路面的關鍵部件，其狀態直接影響行車安全與駕駛體驗。當輪胎出現磨損超標、鼓包、扎釘等問題時，及時更換至關重要。濟南奔馳汽車維修中的輪胎更換，需遵循嚴謹的流程與技術規范，兼顧車型特性與本地路況特點。

　　In the complex road conditions of Jinan, the tires of Mercedes Benz cars, as key components that directly contact the road surface, have a direct impact on driving safety and experience. It is crucial to replace tires in a timely manner when they experience excessive wear, bulges, or spikes. The tire replacement in Jinan Mercedes Benz car maintenance must follow rigorous procedures and technical specifications, taking into account the characteristics of the vehicle model and local road conditions.

　　更換前的準備工作是保障安全的基礎。維修人員需先確認待更換輪胎的規格型號，奔馳不同車型（如轎車、SUV、性能車型）的輪胎尺寸、承重指數、速度級別存在差異，必須選用與原廠規格匹配的輪胎，例如某款奔馳 SUV 適配的 255/50 R19 型號輪胎，其胎寬、扁平比、輪轂直徑等參數需嚴格對應。同時，檢查輪胎的生產日期（通過胎側 DOT 代碼解讀，通常不超過 3 年），避免使用庫存過久的輪胎。準備好專用工具，包括奔馳原廠輪轂扳手、液壓千斤頂（需注意支撐點位置，奔馳車型多在底盤標注專用支撐區域，避免損傷車身結構）、扭矩扳手等，確保工具狀態良好。

　　The preparation work before replacement is the foundation for ensuring safety. The maintenance personnel need to first confirm the specifications and models of the tires to be replaced. There are differences in tire size, load-bearing index, and speed level among different models of Mercedes Benz (such as sedans, SUVs, and performance models), and tires that match the original factory specifications must be selected. For example, the 255/50 R19 tire model that is compatible with a certain Mercedes Benz SUV must have strict corresponding parameters such as tire width, flatness ratio, and wheel hub diameter. At the same time, check the production date of the tires (usually not exceeding 3 years based on the sidewall DOT code interpretation) to avoid using tires that have been in stock for too long. Prepare specialized tools, including Mercedes Benz original wheel hub wrenches, hydraulic jacks (pay attention to the position of support points, Mercedes Benz models often mark special support areas on the chassis to avoid damaging the body structure), torque wrenches, etc., to ensure that the tools are in good condition.

　　輪胎拆卸過程需注重細節操作。首先將車輛停放在濟南維修車間平整堅硬的地面上，拉起手剎并掛入 P 擋（自動擋車型），在非更換輪胎的車輪旁放置輪擋防止溜車。用輪轂扳手逆時針松開輪胎螺母（無需完全擰下，松動即可），然后用千斤頂緩慢頂起車輛，使輪胎離地約 2-3 厘米。完全擰下螺母后，雙手扶住輪胎兩側平穩取下，注意觀察輪轂與制動盤的貼合狀態，若存在銹蝕粘連，需用專用工具輕輕撬動分離，避免蠻力操作損傷輪轂表面。

　　The tire disassembly process requires attention to detail operation. Firstly, park the vehicle on a flat and hard surface in the Jinan maintenance workshop, pull up the handbrake and shift into P gear (for automatic transmission models), and place a wheel stop next to the non tire changing wheels to prevent the vehicle from slipping. Loosen the tire nut counterclockwise with a wheel wrench (do not completely unscrew, loosen it), then slowly lift the vehicle with a jack until the tire is about 2-3 centimeters off the ground. After completely unscrewing the nut, hold both sides of the tire with both hands and smoothly remove it. Pay attention to the fit between the wheel hub and the brake disc. If there is rust or adhesion, use a special tool to gently pry and separate it to avoid rough operation damaging the surface of the wheel hub.

　　新輪胎安裝的技術規范直接影響使用效果。安裝前檢查輪轂內側是否有泥沙、銹跡，用軟布擦拭干凈，確保與輪胎貼合面平整。將新輪胎對準輪轂螺栓孔緩慢套入，用手擰上螺母至無法轉動，確保螺母與螺栓螺紋正確咬合。放下千斤頂使輪胎輕微接觸地面（不完全承重），再用輪轂扳手按對角線順序（如五顆螺母按 1-3-5-2-4 的順序）初步擰緊，避免受力不均導致輪轂變形。之后再次頂起車輛，使用扭矩扳手按原廠規定的扭矩值（奔馳車型通常在 80-120 牛米之間，具體參照車型手冊）最終擰緊螺母，確保每個螺母受力均勻。

　　The technical specifications for installing new tires directly affect their effectiveness. Before installation, check whether there is mud or rust on the inside of the wheel hub, wipe it clean with a soft cloth, and ensure that the fitting surface with the tire is flat. Align the new tire with the wheel hub bolt hole and slowly insert it. Tighten the nut by hand until it cannot rotate, ensuring that the nut is correctly engaged with the bolt thread. Lower the jack to make the tire slightly touch the ground (not fully loaded), and then use a wheel hub wrench to tighten it in diagonal order (such as five nuts in the order of 1-3-5-2-4) to avoid uneven force causing deformation of the wheel hub. Afterwards, lift the vehicle again and use a torque wrench to tighten the nuts according to the original factory specified torque value (usually between 80-120 Nm for Mercedes Benz models, refer to the model manual for details), ensuring that each nut is evenly stressed.

　　更換后的檢查與調試不可忽視。放下車輛后，移除輪擋并再次檢查所有螺母的緊固狀態。啟動車輛在維修車間內緩慢行駛一段距離，測試制動與轉向是否正常，觀察輪胎是否存在異常跳動或異響。考慮到濟南冬季多雪、夏季多雨的氣候特點，更換輪胎后建議進行動平衡測試，通過在輪轂邊緣添加平衡塊，消除輪胎旋轉時的質量不平衡，避免高速行駛時出現方向盤抖動。對于配備胎壓監測系統的奔馳車型，需使用專用設備重新激活或匹配胎壓傳感器，確保儀表顯示準確的胎壓數據，為行車安全增添保障。

　　The inspection and debugging after replacement cannot be ignored. After putting down the vehicle, remove the wheel chocks and check the tightening status of all nuts again. Start the vehicle and slowly drive it in the maintenance workshop for a certain distance to test whether the braking and steering are normal, and observe whether there is any abnormal jumping or noise in the tires. Considering the climate characteristics of Jinan, which is snowy in winter and rainy in summer, it is recommended to conduct a dynamic balance test after replacing the tire. By adding balance weights to the edge of the wheel hub, the mass imbalance during tire rotation can be eliminated to avoid steering wheel shaking during high-speed driving. For Mercedes Benz models equipped with tire pressure monitoring systems, specialized equipment is required to reactivate or match tire pressure sensors to ensure accurate tire pressure data is displayed on the instrument panel, adding security to driving safety.

　　濟南奔馳汽車維修中的輪胎更換，既是技術操作也是細節把控，從準備工作到安裝調試，每一步都需貼合車型特性與本地使用需求。規范的更換流程不僅能延長輪胎使用壽命，更能確保在濟南的城市道路與郊野路況中，車輛始終保持穩定可靠的行駛狀態。

　　The tire replacement in Jinan Mercedes Benz car maintenance is not only a technical operation but also a detail control. From preparation to installation and debugging, every step needs to be tailored to the characteristics of the vehicle model and local usage requirements. A standardized replacement process can not only extend the service life of tires, but also ensure that vehicles always maintain stable and reliable driving conditions on urban and suburban roads in Jinan.

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