I bought a CLA200 here in Lima Peru 4 weeks ago. Incredibly agile for the small engine, modern, easy to drive, nice looking. Was very happy until in its fourth week and with 470km, the transmission system failed DRASTICALLY. From one drive to the next, suddenly it was almos unable to turn on, and when it did, did not change gears in the automatic transmission, and when it did, it did it with a "thump", after it eventually would erratically get to 6th automatic gear, if you stopped at a light, and wanted to acelerate again, it would not go down in gear again, so even if you pressed the gas, the car would barely move because it would remain in sixth instead of going back to a lower gear. Could not operate manual mode or sports transmission. Went directly to the dealer. Ahh the engine light came on AFTER the general failure, not before. After 24 hours, they were able to tell me that it seemed to be a sensor that senses the position of the crankshaft (sensor de ciguenal in spanish). No new sensor in stock yet (this model has just made it to lima in the last 5 months), so instead of waiting to order the peice, they said they are going to take if from another unowned CLA to replace my peice and probably order the part for that car. Anyway this would take a couple of extra days. 4 days so far. I have recieved a nice test drive mercedes until they can return mine to me, but I am still very worried because of the severe malfunction suffered with less than 500km or 4 weeks since new. I am worried that it may malfunction again, and wanted to know if it is a general or common defect in this model, and that is why I looked up this CLA forum and came across the comment from the CLA owner in Chile with supposedly a similar problem. Wanted to know if any other CLA owners have experienced this malfunction and what has happened after it was repaired, or if other CLA200 owners have gone extra miles on the car with no problem.