Mercedes-Benz CLS 2015 Operating Instructions
![Mercedes-Benz CLS 2015 manual cover](/images/ee3c78808bda7285d06778f3/thumbs/thumb175x175.webp)
Mercedes-Benz recommends using synthetic engine oil that meets the MB 229.5 specification for the 2015 CLS. It's important to check the owner's manual for the exact viscosity grade required.
To reset the service light, turn the ignition to position 1, use the steering wheel buttons to navigate to the odometer screen, press and hold the call answer button and the OK button simultaneously, then follow the prompts to reset.
The recommended tire pressure for a 2015 CLS varies based on the tire size. Generally, it is around 32 PSI for the front and 35 PSI for the rear, but you should verify against the sticker located on the driver's side door jamb.
Check if the audio system is muted or the volume is low. Ensure that the correct audio source is selected. If the problem persists, check fuses related to the audio system and consult a Mercedes-Benz dealer if necessary.
Mercedes-Benz recommends changing the transmission fluid and filter every 40,000 miles. Regular checks for leaks and ensuring the transmission operates smoothly are also advised.
Activate Bluetooth on your phone and in the car's COMAND system. Select "Tel" on the car's display, then "Connect Device" and follow the on-screen instructions to pair your phone.
Common causes include leaving lights or accessories on, a faulty alternator, or an old battery. It is advisable to perform a battery test and inspect for any electrical issues.
Check for any obvious issues such as a loose gas cap. If the light remains on, use an OBD-II scanner to check for error codes or visit a professional mechanic for diagnosis.
The air filter should be inspected every 10,000 miles and typically replaced every 20,000 to 30,000 miles, depending on driving conditions.
Common symptoms include unusual noises when driving over bumps, uneven tire wear, and a noticeable change in handling or ride comfort. A professional inspection is recommended if these symptoms occur.