VW T-Roc Engine Overheating + Flashing CEL Alert

Had the same symptoms on my 2020 VW Tiguan 2.0 TSI. The connection between the check engine light, rising temperature, and active air flap issues is very real and needs immediate attention. The active air flap in the air intake system plays a crucial role in thermal management. When the electromechanism fails, the flap can get stuck either open or closed, causing improper airflow through the cooling system. Found this out when my car showed identical symptoms. The repair involved replacing the complete active air flap unit since the electronic actuator had failed. The mechanic confirmed this was affecting the entire thermal management system, leading to higher engine temperatures. This is a serious issue that requires prompt attention as continuous overheating can lead to major engine damage. The diagnostic showed the air flap control unit was sending incorrect signals, disrupting the cooling system function. Would recommend getting it checked immediately since the symptoms match a known issue with the VAG active air flap systems. The repair process typically involves: Full diagnostic scan, Air intake system inspection, Testing the flap actuator function, Checking cooling system integrity, Replacing faulty components This is not a DIY fix as it requires specific diagnostic equipment and proper calibration after repair.

Thanks for sharing your experience. The symptoms and repair process you described match what happened to me. When my T-Roc had these issues, the diagnostic scan confirmed a fault code related to the active air flap malfunction. Did you remember roughly how much the complete repair cost in your case? Just wondering if prices have changed much since then. Also curious if you encountered any related cooling system problems after getting it fixed? The whole thermal management system needs to work perfectly, so its good to know if any follow-up issues popped up later.

Following up on my earlier post about the Tiguan grille shutter problem, got it all sorted with the mechanic last week. The fault code related to the active air flap was cleared after replacing the faulty electromechanism. Total repair came to 590€, which included the diagnostic scan and complete replacement of the actuator unit. No cooling system issues since the fix, engine temperature stays perfectly normal now even during longer drives. Looking back, addressing it quickly was the right call. The car overheating risk was real, and leaving a faulty air intake system unchecked could have led to more expensive engine damage. The new mechanism works flawlessly, maintaining proper airflow and temperature control. Worth noting the problem never returned after the repair. The thermal management system works exactly as intended now, so you should expect similar long-term results with your T-Roc once fixed.

The mechanic diagnosed my T-Roc yesterday, and just as suggested, the active air flap was the root cause. A complete diagnostic scan revealed the flap motor had failed, causing the thermal management issues. The repair cost came to 620€, slightly more than expected but worth every cent considering the potential engine damage that could have occurred. The cooling system is working perfectly now, no more temperature spikes or warning lights. The mechanic walked me through the entire fix, showing how the faulty air intake components were affecting engine temperature. Really glad I addressed this promptly rather than risking more serious issues down the line. Going to keep monitoring the temperature gauge for peace of mind, but everything seems back to normal. Thanks for helping identify the problem, saved me from potential engine damage and a much costlier repair.