C11070 does not fit. C11083. If you want to use the hitch for an accessory such as a bike rack or cargo carrier then you have to make sure the accessory is rated for use with a Class I trailer hitch. Also, with a bike rack, you are limited to 2 bikes maximum on a Class I hitch. C114122 will not fit. C11083 which is a fit for your '03 VW Jetta Wagon, something I confirmed for you with the manufacturer. 11070 are very similar. But there is one important difference. 11083, which will fit your 2003 VW Jetta Wagon, has a receiver tube that is attached under the cross tubing of the hitch. The 11070 hitch has a receiver tube that is mounted straight out from the cross tubing. Both trailer hitch manufacturers and bike rack manufacturers agree that you can only carry 2 bikes maximum on a Class I trailer hitch. The issue isn't the weight of the bikes, it is how far that weight is from the trailer hitch receiver.
The more weight placed further away from the receiver, the more leverage it produces and it can damage the hitch and the vehicle. To carry more than 2 bikes you would need to also use a roof rack. TH9002PRO, is listed as a fit for the 2003 Volkswagen Jetta Wagon. I recently acquired this same bike rack and I am happy to report that all of the good things you see in the reviews are accurate. The best feature for me is the retractable cables because it makes installing and removing the rack easy and fast. The owner's manual for your 2003 Volkswagen Jetta Wagon should give you the correct procedure that is needed to unlock the steering wheel while in tow (if applicable). The flat towing procedures such as unlocking the steering wheel are usually under a section titled, "Recreational Towing". I was not able to reference the online version of your owner's manual unfortunately.
The 2003 Volkswagen Jetta includes 4 yr./ 50000 mi. Is the 2003 VW Jetta electric or gas? The 2003 Volkswagen Jetta is a gas-powered vehicle. What size engine does the 2003 VW Jetta have? The 2003 Volkswagen Jetta has an inline 4 engine. What is the cargo capacity of the 2003 Volkswagen Jetta with all seats in place? The 2003 Volkswagen Jetta has 13 cu.ft. Is the 2003 Volkswagen Jetta front wheel drive rear wheel drive or four wheel drive? The 2003 Volkswagen Jetta has front wheel drive. How long is the 2003 VW Jetta? The 2003 Volkswagen Jetta is 14 ft. 4.3 in. (172.3 in.) long. What is the drag coefficient of the 2003 VW Jetta? The 2003 Volkswagen Jetta has a drag coefficient of 0.30 Cd. How tall is the 2003 VW Jetta? The height of the 2003 Volkswagen Jetta is 4 ft. 8.7 in. (56.7 in.). What is the cam type of the 2003 VW Jetta?
The 2003 Volkswagen Jetta has single overhead cam (SOHC). What is the city and highway range of the 2003 Volkswagen Jetta in miles? The EPA range estimate for the 2003 Volkswagen Jetta is 304.5 mi. 420.5 mi. on the highway. What is the EPA city and highway mileage estimate for the 2003 Volkswagen Jetta? The EPA mileage estimate for the 2003 Volkswagen Jetta is 21 mpg in the city, 29 mpg on the highway. How wide is the 2003 Volkswagen Jetta? The 2003 Volkswagen Jetta is 5 ft. 8.3 in. (68.3 in.)12V front and 12V cargo area power outlet(s) wide. What is the basic warranty on the 2003 VW Jetta? The 2003 Volkswagen Jetta has a 4 yr./ 50000 mi. What is the front track of the 2003 VW Jetta? The front track of the 2003 Volkswagen Jetta is 4 ft. 11.6 in. (59.6 in.). What is the rear track of the 2003 VW Jetta?