Mercedes W211 E-Class Sunroof Drain Flooding
Blocked sunroof drains on W211 cause water to enter the cabin through the A-pillar. The SAM unit under the passenger footwell is particularly vulnerable to water damage. Clear drains every 6 months.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Mercedes-Benz E-Class 2002 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🚗 More About This Vehicle
Help other owners by sharing your experience.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.