Why do the automatic climate control settings in my Mercedes E-Class not maintain the correct temperature?

Home > Gari Forums > Mercedes Benz Forums > Mercedes Benz E Class Forums > Mercedes Benz E Class Features Forums

Why do the automatic climate control settings in my Mercedes E-Class not maintain the correct temperature?

In my Mercedes E-Class W213, the dual-zone climate control doesn’t seem to cool o r heat the cabin consistently. One side might be colder than the other, o r the fan speed doesnt adjust automatically. Could this be caused by faulty sensors, dirty filters, o r AC gas issues — especially in dusty environments like Lahore o r Karachi?

Talha Kyanii asked on 11 Oct 2025 11:53:11 am

1 Answer

28 views |

Gari Master - on 11 Oct 2025 11:54:13 am

This is a common issue in many E-Class models especially W212 and early W213 in Pakistan and can be caused by several factors:

Common Causes:

Overheating: High cabin temperatures, especially in summers, can affect the COMAND o r infotainment unit.

Software glitches: Outdated firmware o r corrupted data may cause the system to freeze o r restart.

Weak o r fluctuating battery voltage: Common in older batteries o r with aftermarket accessories drawing excess power.

Loose wiring o r head unit failure: Dust, heat, and humidity can damage wiring connections over time.

What to Do:

Have the infotainment system software updated at a Mercedes specialist.

Ensure the car battery is strong and charging correctly.

Avoid installing unapproved accessories e.g., cheap reverse cams that draw power from the infotainment system.