Rear caliper ล KODA Octavia A5 (body 1Z32004โ2013: A knot that is often ignored until the brakes start to creak or wedge. Unlike the front calipers, the rear ones last longer, but their remixes require attention afterward. 80โ100 thousand km mileage. The main problem is the wear of guides, anthers and pistons, which leads to pecking and uneven wear of the pads.
In this article we will look at how choose the right repair kit posterior Octavia A5 (including versions with engines 1.6 MPI, 1.8 TSI and 2.0 TDI), what articles of original and analog parts exist, and also give step-by-step replacement instructions And that's the typical mistake. Particular attention should be paid to the differences between the caliphants TEVES (on most versions) and Lucas/TRW (Literally, but they are used in diesel versions).
When you need a repair kit: symptoms of rear caliper wear
The first sign of trouble is uneven brake pad wear. If the inner shoe is washed 2-3 times faster than the external, this is a signal of pecking of the piston or guides. Other "bells":
- ๐ Creaking or whistling When braking (even after replacing the pads). Often caused by corrosion on the guides or damaged anther piston.
- ๐ The car "pulls" aside When you press the brake pedal. It may indicate the acidification of one of the calipers.
- ๐ฅ Brake disc overheating (Seen by darkening or deformation). The reason is that the piston does not move back after braking.
- ๐ง Brake fluid leak It's from under the anther of the piston. Requires an urgent cuff replacement.
On Octavia A5 with rear disc brakes (not the drums as in the basic versions) TEVES They are most vulnerable to corrosion. This is due to the design: their anthers often break due to temperature changes. If you ignore the problem, the consequences range from increased fuel consumption (due to constant braking) to complete jamming of the wheel.
โ ๏ธ Attention: On versions with2.0 TDI(140 hp) and1.8 TSIcalipers Lucas/TRW They have a different piston design. The schemas are not interchangeable with TEVES!
Article numbers of repair kits: original vs analogues
Original repair kits from ล KODA/VW are supplied under article numbers:
| Manufacturer | Article | Applicability | Cost, rubles |
|---|---|---|---|
| ล KODA/VW (original) | 1K0 698 471 A |
Caliper TEVES (most versions) | 2 800โ3 500 |
| ล KODA/VW (original) | 1K0 698 471 C |
Caliper Lucas/TRW (Diesel versions) | 3 200โ4 000 |
| TRW | PFC3400 |
Analogue for TEVESfull set | 1 800โ2 300 |
| ATE | 03.9902-0194.2 |
Cuffs + anthers (without guides) | 1 200โ1 500 |
| Febi Bilstein | 23330 |
Guides + lubrication | 900โ1 200 |
When choosing analogues, pay attention to kit. Cheap sets (for example, from Sasic or Maxgear) often do not include the lubricant for guides or the anther of the piston. The best option for price/quality TRW or ATE. For guides fits. lubricant Slipkote 220-R DBC (article 220-10G), which withstands temperatures up to +300ยฐC.
Critical error: use graphite or lithium lubricant for guides. It cokes when heated and accelerates wear!
- Original (ล KODA/VW)
- TRW
- ATE
- Febi Bilstein
- Other brand
Tools and preparation for replacement
To work you will need:
- ๐ง Keys and sockets: on "13", "15", "17" (for guides and mounting of the caliper), torx
T30(for some versions). - ๐จ Hammer and drift (If they are in the right place, they will be in the right place.)
- ๐ ๏ธ Caliper piston remover (or a flat-padded rod).
- ๐งด Brake fluid DOT 4 (for pumping after replacement).
- ๐งผ Brake cleaner (for example, Liqui Moly Bremsen-Reiniger).
Before starting work:
- Lift the back of the car and remove the wheel. Don't brake. After that, the piston may fall out of the caliper!
- Clean the caliper and dirt guides with a metal brush.
- Unscrew the lid of the brake fluid tank (to reduce the pressure when the piston is pressed).
โ๏ธ Preparation for replacement of the remake
โ ๏ธ Attention: On Octavia A5 withESC(electronic stabilization system) after the caliper replacement, an error may light upESP. A scanner will be required for resetting (e.g., VCDS) or a 10-minute trip with multiple intensive braking.
Step-by-step replacement of the rear caliper repair kit
Let's analyze the process on the example of a caliper TEVES (most common):
- Removing the caliper:
- Unscrew the two bolts of the caliper attachment to the bracket (key on "15").
- Remove the caliper and hang it on a wire (do not put pressure on the brake hose!).
- Remove the brake pads and inspect them for uniform wear.
- Disassembly of the caliper:
- Remove the anther of the piston (carefully so as not to damage the landing place).
- Blow the piston with compressed air (or squeeze the removable). Don't use pliers - They're scratching the surface!
- Remove the old sealing ring from the cylinder.
- Replacement of guides:
- Make sure to remove the old sleeves (if necessary).
- Apply lubrication to new guides and install them.
- Pull the moment in.
25โ30 Nm.
- Assembly and installation:
- Install a new anther and piston cuff (from the remplekt).
- Press the piston back (pre-cleaning the cylinder).
- Set the caliper in place and pump the brakes.
Important nuance: On Octavia A5 with 1.9 TDI (By 2009) the scalp may be piston-stone (instead of rubber). They cannot be replaced separately - only in the collection with a caliper.
If the piston is not pressed, check if the cap of the brake fluid tank is open. If that doesn't help, it may have jammed the valve in the main brake cylinder - it will need repair.
Common mistakes and how to avoid them
Even experienced craftsmen make mistakes when working with back calipers Octavia A5. Here are the most common:
- ๐ง Re-upholstery of guides. Leads to a pecking. The moment of puffing.
25โ30 Nm, no more! - ๐งด Using the wrong lubricant. Graphite or lithium lubricant cokes when heated. Only Slipkote 220-R or Molykote G-3407.
- ๐ฉ Damage to the brake hose when you take off the caliper. Always hang the caliper on the wire, do not leave hanging on the hose.
- ๐ซ Forgetting to bleed the brakes after the replacement. This leads to a โsoftโ pedal and a decrease in the effectiveness of braking.
Another common problem is incorrect installation of the piston boot. He must sit without skewing, otherwise at the first braking it will tear. Check with your finger: the anther should not scroll around the piston.
What to do if after replacing the brakes are โwobblyโ?
It's a sign of air in the system. It is necessary to pump the brakes in sequence: right rear โ left rear โ right front โ left front โ left front. On the Octavia A5 with ABS, pumping must be done with a scanner (for example, VCDS), otherwise the air will remain in the ABS module.
Cost of work in the service vs self-repair
Prices for replacement of the rear caliper remake in the services vary:
| Service type | Cost of work (for 1 caliper), rubles | Opening hours |
|---|---|---|
| Official dealer ล KODA | 4 500โ6 000 | 2โ3 hours |
| Independent service | 2 500โ3 500 | 1.5โ2 hours |
| On your own | 0 (only cost of remake) | 3-4 hours (without experience) |
The savings when repairing yourself are obvious, but it is important to consider hidden risks:
- ๐ง Incorrect pumping of brakes can lead to system failure.
- ๐ If you do not notice the wear of the brake disc (thickness less than
10 mm), it will have to be changed separately. - ๐ Errors in the assembly of the caliper reduce the resource of new parts 2-3 times.
If you have never worked with a brake system, it is better to entrust the replacement to professionals. But if there is experience (for example, changed the front pads), then repair the back caliper. Octavia A5 in the garage and in the garage.
The most common reason for re-repair is saving on lubrication for guides. Cheap analogues (e.g., Litol-24) lead to a spell after 10-15 thousand. km.
Frequently asked questions about Octavia A5 caliper repair kits
Can you replace only the anthers without touching the cuffs?
No, it's a temporary solution. The dust protects the cuff from dirt, and if it is torn, the cuff is already worn out. Replacement of the anther will lead to the flow of brake fluid in 5-10 thousand. km.
How do I know which caliper is on my Octavia A5 โ TEVES or Lucas/TRW?
Examine the caliper visually:
- TEVES: The body is marked with the words "TEVES" or "ATE".
- Lucas/TRW: the case is more massive, often labeled "Lucas" or "TRW".
You can also check by VIN code via VIN decoder or spare parts catalogues (e.g., ETKA).
Do I need to pump the brakes after replacing the remplekt if the piston was not removed?
Yeah, pumping is mandatory. Even if the piston was not removed, when pressed back into the cylinder, air could enter the system through the tank. Ignoring the pumping will lead to a "soft" brake pedal.
Can I use a remix from the VW Golf 5 or the Audi A3 8P?
Yes, Octavia A5 built on a platform VW Group PQ35So the calipers and rempleks are interchangeable with:
- VW Golf 5 (1K1),
- VW Jetta 5 (1K2),
- Audi A3 8P (until 2012),
- SEAT Leon 1P.
The main thing is the coincidence of the articles of the caliper (TEVES or Lucas/TRW).
How many miles does the back caliper need to be changed?
Recommended interval - Every 100,000 to 120,000. km or with the following symptoms:
- The brake fluid leaks from under the anther.
- Piston jamming (the wheel heats up after a ride).
- Torn guide or piston boot.
On vehicles operated in aggressive conditions (salt on the roads, frequent braking), the interval is reduced to 80 thousand km.