2022 Mercedes-Benz GLS Pre-Purchase Inspection Checklist
Known Issues — 2022 Mercedes-Benz GLS
CRITICAL
E-ACTIVE BODY CONTROL system faults on equipped examples
MODERATE
MBUX infotainment freeze — OTA update typically resolves
MODERATE
48V mild hybrid fault codes on GLS450 models
MODERATE
9G-Tronic transmission shudder at light throttle
MODERATE
GLS63 front engine seal oil leaks at higher mileage
MODERATE
Third-row seat power fold motor failure on high-use examples
What to Inspect
- Check E-ACTIVE BODY CONTROL warning status on startup
- Test MBUX — latest OTA update and stability test
- Check 48V system fault codes
- Drive at light throttle for 9G-Tronic shudder test
- Test third-row power fold cycle reliability
- Pull full multi-module fault code scan
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $400-$600 |
| Service B (full inspection) | every 20,000 miles | $900-$1,400 |
| Air spring replacement (each) | as needed | $1,200-$2,200 |
| Transmission fluid service | every 40,000 miles | $500-$750 |
| Brake pads and rotors (front) | every 25,000-35,000 miles | $1,000-$1,700 |
| 48V mild hybrid system check | every 40,000 miles | $280-$480 |
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