What is the reason for the absence of gears 1, 3, 5, and 7 in the Passat?
2 Answers
The absence of gears 1, 3, 5, and 7 in the Passat is due to the odd-gear synchronizer being stuck or the piston push rod of the mechatronic unit or the control unit sensor itself being damaged. Starting in 1st gear: Do not exceed 2000 RPM, and try to be as gentle as possible. Generally, it is only used when starting or turning. 2nd gear is used at 20-40 km/h: The engine torque is moderate, and the noise is relatively low, making it suitable for normal driving. 3rd gear is used at 40-60 km/h: At 2500-3500 RPM, the engine torque is more suitable for overtaking or climbing steep slopes, but at this time, the engine fuel consumption increases and the noise becomes louder. 4th gear is used at 60-75 km/h: Under these conditions, it is generally not recommended to operate above 3500 RPM for extended periods. 5th gear is used at speeds above 75 km/h.
When driving a Passat, if the 1, 3, 5, and 7 gears suddenly fail, as someone who frequently works on cars, I believe the main issue lies within the odd gear group inside the transmission. For example, the synchronizer might be severely worn or the gears could be stuck, which is usually caused by long-term frequent use or improper maintenance. Manual transmission Passats are prone to this issue because those gears are used more often. Check if the shift linkage is loose or deformed. If you feel difficulty shifting gears, stop driving immediately—forcing it could damage more components. I’ve driven similar models, and timely transmission oil changes can prevent such trouble. The average repair cost is around a thousand bucks, so save some money and address it early. Safe driving is crucial—relying on even-numbered gears to move after gear failure is only for emergencies; don’t take long trips.
