Expert Answers about Audi A4

Trailer Brake Controller and Wiring for 2007 Audi A4 Avant Quattro
To install a brake controller on your 2007 Audi A4 Avant Quattro you would need the Universal Installation Kit for Trailer Brake Controller # ETBC7. Since you already have a 4-flat connector, you wouldn't need anything else; this kit comes with a 4 pole to 7 pole adapter to make the transition you asked about. Then for a brake controller I recommend the Prodigy P2 # 90885. This is a proportional brake controller, so when you activate the brakes on your Audi, the trailer's brakes will...
view full answer...

Replacement Key for a Sport Rack Semi-Custom Roof Rack System
You have two options. The first is that if there is a number on the front of the lock, you can replace the key by searching "THKEYN####" in our search bar, where #### is the number on the front of the lock. If you have less than three numbers, don't add any zeros. For example, a cylinder labeled "012" will be part # THKEYN012 The other option is to replace the entire lock assembly with part # 05011500000, which will include two keys for the lock. If the box is currently locked, you'll...
view full answer...

Recommended Method for Carrying 4 Bikes on 2009 Audi A4 Wagon
You are correct that there is only a Class I hitch with a 1-1/4" receiver # C11195 available for your Audi A4 Wagon. You are also correct that when using a 1-1/4" receiver that you are limited to a 2 bike rack. I have a solution for you to carry 4 bikes, but using a hitch extender or adapter like the # HTAD reduces the tongue weight capacity of your hitch by 50%, so it will not be a good option. Your best bet is going to be carrying 2 bikes on a rack and 2 on the roof, using a roof rack...
view full answer...

Trailer Hitch and Wiring for a 2016 Audi A4
For your 2016 Audi A4 I recommend Draw-Titehitch # DT24950. This is a Class I trailer hitch with a 1-1/4 inch receiver. 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.
view full answer...

Roof Rack and Stand Up Paddleboard Carrier for a 2008 Audi A4
One of the better kits we have for SUP boards are the aero-style crossbars. These assist in carrying Stand Up Paddleboards by being aerodynamic themselves, and their wider bases providing more stability for the boards. I recommend the Thule AeroBlade Traverse kit, consisting of: Thule WingBars, 47 inches, Silver, part # TH711200 or Black, TH711220 Thule Rapid Traverse Foot Pack, part # TH480R Thule Fit Kit, part # THKIT1212 Thule is compatible with a wide range of accessories and also...
view full answer...

Trailer Hitch Recevier For 2002 Audi A4 Wagon For Bike Rack
There is a trailer hitch receiver option for your 2002 Audi A4 wagon, but only a 1-1/4, Class I hitch, as there were no 2 inch hitches ever made to fit this vehicle. So while you can add a hitch, it does have to be the 1-1/4 inch, Class I hitch from Curt: - Curt Trailer Hitch Receiver # 11164 I recognize this isn't exactly what you were looking for, but it is the only hitch option for your Audi, and it does also require a Class I-compatible bike rack. There are quality options for a Class...
view full answer...

2009 Audi A4 Convertible Bike Rack Recommendation
The only solution I have for your 2009 Audi A4 convertible to carry bikes is to use the Saris Guardian part # SAR93FR which is a confirmed fit. None of the trailer hitches we offer will fit the convertible models. I attached a review video for the trunk rack for you to check out. If you plan on carrying any womens or alternative framed bikes without horizontal top tubes you may also be interested in purchasing a Kuat Bike Frame Adapter Bar # UB01 to provide a horizontal top tube on your...
view full answer...

Are Load Resistors Needed to Use Putco Plasma 1156 LED Lights # P241156R-360 on 2007 Audi A4
Load resistors can be needed in some applications in German import vehicles if they came equipped with standard incandescent bulbs and are being converted to LED types. Also, the presence of a 'bulb-out' sensor may also require load resistors to allow low-current-demand LEDs to operate properly (without hyper-flashing). My contact at Putco suggested that you first try the bulbs in your A4 without load resistors. If you find that they operate properly then you're all set. If they misbehave...
view full answer...

7-Way Round to 4-Way Flat Adapter Recommendation
As long as the 7-way round you have on your trailer is wired so that the stop/turn circuits are on the same circuits the # 47405 would be perfect for what you are trying to do. If the 7-way you have is a Euro style that has separate taillight circuits then you would need to make an adapter, but I doubt this is this case. If your 7-way is wired like the diagram I attached you would be good to go.
view full answer...

Any Extra Parts Needed For Thule Passage 2 Bike Rack # TH910XT To Carry Womans Bike on 2010 Audi A4
The Thule Passage 2 Bike Rack, part # TH910XT, is a good fit for your 2010 Audi A4. I am including links to the installation instructions and a video review on the #TH910XT bike rack. The part you might need for the womans bike is the Thule Bike Adapter Bar, part # TH982XT. This adapter bar attaches to your bikes seat post and handlebar stem post, providing a horizontal bar for the bike rack to grab on to. It will help keep the bike level for safe transport. It would be required if there...
view full answer...

Hitch for 2013 Audi S4
The Stealth Hitches Hidden Trailer Hitch Receiver w/ Towing Kit - Custom Fit - 2" Item # 391AUDA4A5S5T is available for your Audi S4. This hitch is completely hidden when not in use. It has a tongue weight capacity of 350 pounds. You would need to check the capacity of your Audie as well and then choose accessories based on the lowest of the weights. You could use your hitch for a cargo carrier like the # e98874 which weighs 48lbs or a bike rack like the # TH9058 which weighs 28lbs...
view full answer...

Ball Mount that Comes with Curt Trailer Hitch C111693
The ball mount that comes with the hitch part # C11169 that you referenced is the Curt # C45521. Since this is a Class I hitch that means you have to only use the recommended ball mount. It should get you pretty close to towing your trailer level, but if not there isn't an alternative that Curt will recommend. The trailer wiring you would need is the Curt kit part # C59496 which does have a converter box which will take the wiring signals of your vehicle and convert them to a 4-way style...
view full answer...

Fit of Curt Trailer Hitches # 11164 and # C11180 on 2005.5 Audi A4 Avant
Although the exterior body components of the 2005.5 and later model years of the Audi A4 Avant may be similar, or even the same, the frame structures are not. If you compare the mounting flanges for these two hitches, parts # 11164 and # C11180, you will note that the mounting points for hitch # C11180 are vertical (meaning the bolts will be oriented in an up-down direction) while the hardware for hitch # 11164 installs to the spare tire well in a horizontal direction. Both of these light-duty...
view full answer...

Best Trunk Mounted Bike Rack for a 2007 Audi A4
The Thule Passage Trunk Mounted Bike Carrier, # TH910XT, is very popular with our Audi A4 owners. This rack is affordably priced, offers the Fit Dial system for easy mounting, and anti-sway cradles to prevent bike to vehicle contact . My personal favorite is the Thule Outway PRO 2-Bike Rack, # TH45JV. The OutWay is loaded with features. Check out the attached video to learn about all of its great features, Please keep in mind that any time something is mounted directly to the surface...
view full answer...

Will Curt Hitch from 2018 Audi A4 Fit a 2020 Audi A5 Sportback
Yes, I checked with Curt and they confirmed that the Curt Trailer Hitch Receiver # C11448 on your 2018 Audi A4 does in fact fit your 2020 Audi A5 Sportback. Be sure to use new hardware as it's only meant to be torqued down once. You can get replacement hardware as part # RHK.
view full answer...

Aero Style Roof Racks for 2017 Audi A4 Sedan
We do have aero-style roof racks to fit your 2017 Audi A4 Sedan from makers like Thule, Yakima and Inno. All of them appear on the linked page. If it were my car and my money I would select the Inno Flush rack made of parts # INXB100-108, # INXS200 and # INK481. This rack system is shown in the linked installation video. On your car the bars will have a spread of 26-inches, wide enough for excellent stability for whatever items you load on them, and a weight capacity of 120-lbs total. The...
view full answer...

Tire Cable Recommendation for Fitting Tire Size 245/40-18
For lowered priced cables that fit your tire size of 245/40-18 I would recommend the Titan Tire Cables part # TC339DC. Reason being they have a V-pattern which will make for a smoother ride quality.
view full answer...

Comparison of Camco Circuit Analyzers and Voltage Protectors
Camco Power Defender voltage protectors, parts # CAM55301 and # CAM55306, have a bit more protection than the circuit analyzers, parts # CAM55310, # CAM55312, and # CAM55313. Both the analyzers and protectors have diagnostic lights for faults but beyond that the analyzers are just surge protectors. The voltage protectors go a little further by detecting the voltage and shutting off if the voltage level falls below 102V or goes over 132V. The voltage protectors also reset themselves...
view full answer...

What To Do If Bumper and Hitch Contact Each Other After Installation On 2008 Audi A4
The Curt Trailer Hitch Receiver part # 11164 which is a fit for a 2008 Audi A4 does not require trimming. However, the fit around the lower part of the bumper fascia where it meets the frame brackets for the hitch can be tight and in some cases touching. If the parts are touching it would be a good idea to go ahead and make some small cuts to alleviate some pressure as this then puts more stress on the fasteners. That said, you most likely would not run into any issues if just left the...
view full answer...

Troubleshooting Trailer Wiring that Stops Working when Vehicle Headlights are On
What you described is a classic ground issue. The problem is that the added amperage draw of the head/running lights being on for your vehicle makes the trailer taillights a bit weaker. What you would want to is run the grounds of the light assemblies of your trailer back to the main ground harness of your trailer. I can almost guarantee that will fix the problem. I attached a help article for you to check out as well that covers 4-way troubleshooting.
view full answer...