2016 Volkswagen Touareg

Random engine hesitancy reducing acceleration while driving. Vehicle maintained by the dealer for all scheduled maintenance and service visits. Within 30 days of a manufacture's repair that dealt with the HVAC and air filter AND a service visit to change oil and rotate tires, the hesitancy during driving was more pronounced. The dealer's service center stated the air filter was flooded from an HVAC leak and a clog. I have found similar owners have had problems like this and VW will not address it systemically. I otherwise enjoy my vehicle, but am concerned that it will not accelerate when needed and is potentially dangerous without warning. It should not take loss of life or property to have this corrected.

2016 Touareg was towed to OStein VW service after engine would not accelerate and ran rough when got onto the interstate. OStein VW diagnostic was water into the air filter that got into engine and now need to replace engine block because of water getting into the air filter from the rain drain system system getting clogged for the Touareg. VW Service says can hear engine valves chattering. I see at NHTSA that at least 60 other complaints have been filed about this problem of water getting into the air filter.

There is an ongoing issue with the drain from the air cleaner box clogging and water collecting in the box and then being ingested into the engine. On other occasions I had drained water from the box and changed the wet air filter to a dry one. Today (5/26/2021) I pulled out of my driveway and car started stalling. I got a transmission fault notification and immediately returned to my home. After raising the hood I noticed a noise from the left side of the engine bay and checked the drain for the air cleaner box. It was of course clogged. I opened the air cleaner box and approximately 6" of water ran out of the box. I restarted the engine and no longer had a transmission fault but an engine management warning. The engine while running was running roughly. I contacted the nearest VW dealership and they stated that this was a known issue, that there was no recall, that VW had come up with a "fix" for the issue and that, of course it was not covered under the powertrain warranty. The vehicle is not driveable and will be towed to the dealership for diagnosis and repair.

VEHICLE INTERMITTENTLY LOSES POWER WHEN ACCELERATING. WOULD DESCRIBE THE FEELING AS RANGING FROM A SHUDDER OR "HICCUP" TO A DROPPING SENSATION. OCCURS AT ANY POINT OF ACCELERATION - WHETHER FROM LOW RATE OF SPEED TO HIGH (AS IN ENTRANCE RAMP ACCELERATION) OR FROM CRUISING SPEED TO HIGHER CRUISING SPEED (AS WHEN SPEED LIMIT INCREASES). IDENTIFIED THIS SENSATION WITHIN WEEKS OF TAKING DELIVERY OF VEHICLE AND IT HAS CONTINUED.

AT 18,293 MILES THE VEHICLE ENTERED "LIMP MODE" WHILE UNDER NORMAL DRIVING CONDITIONS. THE PROBLEM WAS DIAGNOSED AS THE ENGINE AIR FILTER BEING SATURATED WITH WATER DUE TO A CLOGGED AIR BOX DRAIN HOLDING WATER. AT 26,054 MILES, THE FILTER WAS AGAIN FOUND TO BE SATURATED WITH WATER. THIS REQUIRED REPLACEMENT OF THE AIR FILTER A SECOND TIME. NORMAL AIR FILTER REPLACEMENT IS RECOMMENDED AT 60,000 MILES. AT LAST REPLACEMENT, VW DEALER "MODIFIED" THE AIR BOX DRAIN TO IMPROVE DRAINAGE

THE VEHICLE WAS LEFT PARKED ON MY DRIVEWAY FOR 4 DAYS, DURING SO HEAVY RAINSTORMS PASSED OVER MY AREA. WHEN I WENT TO GO START THE CAR AFTER 4 DAYS, A SUNNY DRY DAY FINALLY, ITS SPUTTERED AND SUFFOCATED WHEN STARTING UP. HAVING HEARD THESE VEHICLES HAVE WATER PROBLEMS WITH THE AIR INTAKE FOR THE ENGINE I IMMEDIATELY SHUT OFF THE CAR. WHEN I OPENED THE AIR FILTER HOUSING THERE WERE ABOUT 2 INCHES OF WATER IN THE HOUSING THAT UNDOUBTEDLY GOT SUCKED INTO MY ENGINE WHEN IT WAS STARTED. WITH THE VEHICLE, NOT BEING DRIVEN AT ALL DURING THE RAIN, HEAVY SPRAY FROM THE ROAD OR OTHER CARS CAN BE RULED OUT AS A CAUSE AND I FIGURE THERE MUST BE A DEFECT IN THE SEAL OR DESIGN OF THE AIR INTAKE. ESPECIALLY, SINCE VW CHINA RECALLED THESE VEHICLES FOR THE EXACT SAME ISSUE EARLIER THIS YEAR. ADDITIONALLY, THE CAR WAS PARKED ON A TYPICAL INCLINED DRIVEWAY ABOUT 8 FEET IN FRONT OF THE GARAGE DOOR, IN NO PRECARIOUS POSITION. NOW THE VEHICLE CONTINUES TO SPUTTER AND LOSE REVS WHEN STARTING UP.

DUE TO A ENGINEERING FAULT WATER IS A GETTING INTO THE AIR INTAKE AND SOAKING THE BOTTOM OF THE AIR INTAKE WHERE ITS DETERIORATING THE FILTER AND ALSO ENDANGERING THE ENGINE OF SUCKING UP WATER AND HYDROLOCKING. THIS IS A KNOWN ISSUE AND HAS CAUSED OTHER VEHICLES OF THIS MAKE AND MODEL TO LOCK UP AND DISABLE THE ENGINE. IT IS NOT DUE TO DRIVING THROUGH WATER BUT SIMPLY FAULTY ENGINEERING THAT ALLOWS WATER TO FLOW FROM THE FRONT OF THE CAR DOWN INTO THE AIR INTAKE.