Gearbox Pressure Sensor Replacement (TCM / Valve Body Repair) 📌 Common Issue Pressure sensors inside Mercedes 7G/9G, VW/Audi DQ380/DQ500, BMW ZF gearboxes often fail due to high heat and vibration. Many workshops repair incorrectly: manual drilling, hand soldering, or using low-quality parts → causing short circuits, unstable signals, or complete TCM failure. --- 1️⃣ Risks of Manual Drilling ❌ Off-center holes → misaligned sensor ❌ Metal shavings → short circuits on PCB ❌ Hand soldering → weak

Eurovan 01P Transmission failure and repair info