How to Bleed Tektro Auriga Comp Disc Brakes
Learn how to bleed the air out of Tektro Auriga Comp hydraulic disc brakes.
In this tutorial we’ll learn how to bleed the hydraulic brake system on Tektro Auriga Comp Disc Brakes. You should always bleed the system after shortening or replacing the hose, or if you have opened the system to air at any time. If your brake action feels spongy, bleeding the system will also improve performance.
What You’ll Need
For this job you will need a 2, 3 and 4mm allen wrench, a 7mm open end wrench, a T15 Torx wrench, a piston holder or 10mm allen wrench in order to keep the pistons in place, a small bag and elastic band, and a clean rag. You will also need a Tektro hydraulic disc brake service kit, which should include a syringe, 2 lengths of plastic tubing, an outlet valve, and a bottle of Tektro hydraulic brake fluid (mineral oil). Make sure to use the specific type of oil for this brand, as using other types could damage your system. A repair stand and clean work space are also highly recommended.
Mount your bike in the repair stand, making sure the wheel axles are parallel with the floor. Now remove your wheel. Remove the disc brake pads and slide a piston block or 10mm allen wrench into the gap to keep the pistons in place.
Remove the rubber cover from the bleed outlet valve on the brake caliper. Attach the smaller tube from your service kit onto the syringe and fill your syringe about halfway with oil. Now firmly insert the syringe and tube onto the bleed outlet valve.
Using your 4mm allen wrench, slightly loosen the brake lever bracket until it rotates on the handlebar. Loosen and move the shifter out of the way if needed. Rotate the brake lever so that the top of the reservoir tank is parallel with the ground.
Using your T15 Torx wrench, loosen and remove the bolt on top of the reservoir tank, and thread the outlet valve into the hole, with the longer plastic tube firmly attached and place the other end into your plastic bag and keep it in place with an elastic band.
Now open the outlet valve on the caliper slightly 1/8 to 1/4 turn. Using the syringe, push and pull the oil back and forth through the system several times until there are no more air bubbles coming out of either end. Now tighten the bleed valve with your 7mm spanner to 4-6Nm.
Remove the hose and reinstall the rubber outlet valve cover. Now remove the outlet valve from the reservoir and reinstall the bolt using your T15 Torx wrench. Tighten this bolt to 2-4Nm.
Use a clean rag to wipe any excess oil off the lever, caliper, and hose. Reinstall your brake pads and front wheel. Depress the brake lever a few times, to ensure the action feels stiff and not spongy.
In our next tutorial we will take a more in-depth look at replacing and adjusting the brake pads on this model.
- Park Tool TWS-2 Fold-Up Torx Compatible Wrench Set
- Tektro Hydraulic Bleed Kit
- Park Tool HXS-1.2 Hex Wrench Set
- Park Tool Wrench Combo Set
- Tektro Auriga Comp Hydraulic Disc Brake (Front)
- Tektro Auriga Comp Hydraulic Disc Brake (Rear)
Discuss this topic in the Bicycle Repairs and Mechanics Forum
My boss found an old Schwinn Jaguar at a house he had bought to flip. He offered it to me, and I brought it home. Rust is very minimal. It needed new tires, which I took care of. The tubes seemed ok, but I got new ones as well. The seat was not original, and a bit beat up, so I bought a replacement. When I went to adjust the height, I found out that the seat post was frozen. After lots of l...Read more
On both my bike handles, the gear shifts are stuck and I can’t move them. They’re currently stuck on gear 5 now (the highest). How do I fix it without needing a new gear shift?...Read more
I took a little video of it: https://drive.google.com/file/d/1JWGr3RBVr8WWDRjbfoAo_13p7opnN4EC/view?usp=drivesdk It's a huffy bike for a five year old. Basically the wheels keep locking up randomly when pedaling. Checked to see if there was anything rubbing against the chain but I don't see any blockages. Do I need to take apart the whole pedal? Thanks for any advice!...Read more
Hello biking community! I stumbled upon BikeRide and really happy to have found it! Thanking anyone in advance for any guidance on my situation. My rear tire was stolen on my Specialized Allez (at least 7 years old) road bike a few months ago and haven't had a chance to replace it. It has been sitting in a bike storage room on the bare fork and derailer :/ I'm concerned this may have added s...Read more
20200404_151727.jpg (Size: 97.27 KB / Downloads: 27) Hi all, for the past few years I've been riding a Trek 6500 ZX from around 1999-2001. I did some basic tune-ups on as well as replacing the wheels with the help of my local bike shop after getting it for free from some folks who didn't use it much but took good care of it. It still rides very well with no issues aside from the o...Read more
Hello bike world! I'm a novice biker trying to learn more about bike mechanics, in general. My girlfriend's used bike has some irregularities that are a cause of conern. The back wheel/axle sits VERY far forward in the designated notch on the frame. To the point where we're concerned a good bump may knock the wheel off the frame while riding. IMG_1916.jpg (Size: 22.97 KB / Downloa...Read more
I just wanted to show how I rescue rusty bits and pieces using Evapo-rust. does a decent job for just soaking, letting it work, then rinse and lightly scrub and then off to the bench polisher. this is how to start off and I will post pics of the finished bolts when complete. I think you will be pleasantly surprised at the results. ...Read more
Hey everyone! This is my first time repairing this bike. I’ve done basic maintenance (new tape, tubes, tires)... but then the wheels were stolen! I really enjoy the aesthetic of this bike and I’m hoping the repairs will be possible. I’ll definitely need some direction on what parts to look for and how to approach this. Here is what I’m working with. Nishiki Performance Equipe Sport See...Read more
p6i6rfpm1ip41 (1).jpg (Size: 82.1 KB / Downloads: 61) Is there a way to get rid of that rust or do I need to replace certain components? More pics...Read more
Hello all, I have a old Antelope 820 in nice condition that has a broken (right) shiftier (Shimano 200GS SIS 7 S). It appears that these old parts are not readily (or cheaply) available. Has anyone swapped out these shifters with a more current model without changing the derailer(s)? I don't want to spend alot as the bike isn't worth much I just have a hard time trashing it since is a nice bike ...Read more
Hi all, New member here . I just bough a new bike and yesterday was my first ride. I noticed a sound when in my 3th or 4th gear (3rd and 4th largest sprocket) . Today I tried to determine the noise and it seems to be because the chain does not seem to fit perfectly on sprockets (if inspected, you can see small gap between chain and sprocket, causing a "click" when pedalling). I checked the usual...Read more
A recent purchase of an Elektra 7-speed cruiser came with a Megarange freewheel. I didn't like it, so today I swapped it for a regular 14-28T freewheel. The second lowest geared cog has 24 teeth. The lowest had 34 teeth. That's a huge jump from one cog to another. I found that in a headwind, when I dropped to the lowest, I had to pedal like crazy just to get up to walking pace. And because of thi...Read more
Took an old 28" front rim from a friend who would otherwise throw it in the garbage. THe rim came with 700 Hutchinson tire and I had to change its inner tube, before putting it on my old road bike. Then came the evening nightmare .. tire was SUPER tight and did not want to come off. I have changed many tubes, but this was so far the toughest tube swap mission. Fingertips hurt and Hutchinson did no...Read more
Hi I'm building up a mountain bike ready for when the summer gets here in the UK, I got given a pair of Marzochhi Bomber 55 front forks that came with a Tektro Auriga Comp hydraulic brake. Wanting to keep the brakes matching I bought a secondhand new old stock rear Tektro Auriga Comp brake, when it arrived it looked in good condition, I had to order a bracket for the frame to allow the caliper t...Read more
I purchased this bike for $75 and it wasn't riding well so I decided to take it all apart and make it new again. I am having the most difficult time removing the fork and pedal cranks (I think that's what they are called). The top of the fork has a black circular piece that I am sure needs to be unscrewed but it won't budge. I have tried using a pipe strap but it just slips. Using a set of pl...Read more