NHTSA Complaint #11555299 — 2011 TOYOTA VENZA

I had a 2011 Toyota Venza. Notice oil leakage. Took for oil and filter change and a check. Nothing was found, however four months later car began rattling and driving rough - I took to dealership and was told the Water Pump needed to be replaced. I have since found out that Toyota has had a many issues with the VVT-i Oil line failures AND Water Pump failures- Both that lead to a Failed Engine!! They fixed the water pump, however 45days later, my vehicles just stopped running as I was driving down the road. I checked oil - it was empty! Car would not start. I had car towed to dealer. I was then told 3days later that I needed a New Engine! That the Compressors were bad. In my research I found that when the compressor is starting to go out- the vehicle begins to run rough! This is what was told to the Dealership. I believe they failed to properly diagnosed my vehicle. And they wanted me to pay $9400 to Repair!!!! $5500 for a used Engine!! If Toyota knows they have the issue with the oil line... they should have checked for this... and checked the Engine when they KNOW THAT THE WATER PUMP FAILURE EFFECTS THE ENGINE!!!!!! I AM NOT THE MECHANIC!! The service guy at the dealership had his head down the entire time ... he knows they screwed up!! Of Course taking NO OWNERSHIP. I asked him why wouldn't they check for Engine compression when I told them it was driving rough - he says they just don't check for that!!! NOT MY FAULT.... This is NOT what I expect from a Toyota- has anyone else had this issues??? Vehicle had 168,000 miles. I had a Toyota Landcruiser with well over 220,000 miles and NEVER an engine issue!