Does the steel braided line also fit other vehicles?

Yes – basically the braided steel line can also fit many other vehicles if the connection data matches. In practice, many manufacturers use very similar thread sizes for brake line fittings, so using them across different models is often possible.What really mattersTo ensure the line fits securely and tightly, you need to match three main points:Thread size / connectionThe key factor is what thread your vehicle has at the connection points (e.g., at the fixed line connection or brake caliper).This thread size must match the fittings of the line.Sealing surface (concave or convex)Often, the problem is not the thread, but the sealing shape on the counterpart:concave (valley) orconvex (hill)Our fittings are so-called “hybrid” connections. This means: Each connection is designed to reliably seal with both concave and convex sealing surfaces. This makes the line significantly more versatile.Length and routingYou need to determine the required length suitable for your vehicle (ideally as described above: fully extend, simulate routing, check steering).Only if the line is long enough and can be routed cleanly is it truly suitable.How to quickly check if it fitsDetermine the thread size on the vehicle (and compare it with the data of the line)Measure the line lengthCheck the technical data in the product description – there you will find all the details about the line and the connections.

Two lens gaskets were supplied with the Steelflex lines. Where exactly are these installed?

The 2 lens seals are not automatically always installed, but only when they are needed to compensate for the sealing cone on the respective counterpart. Background: Depending on the vehicle/connection, there are different flaring or sealing shapes – and that's exactly why the lenses are always provided as a precaution.What are the lens seals for?They serve as a compensating piece when the cone on the connection (counterpart) does not perfectly match the steel braided hose. This ensures that the connection seals cleanly.Where are they used?If needed, the lens seals are placed directly into the connection with internal thread – that is, into the “female” fitting on the vehicle/distributor/brake caliper, before you screw in the hose.The hose presses the lens into its seat when tightened, thus creating the seal.When do you need them – and when not?F flare (DIN/ISO cone, usually fits):→ Lens seals are not needed.The hose usually seals directly over the matching cone here.E flare:→ Lens seals must be used.Simply place it into the internal thread, then screw in the hose and tighten as usual.Installation noteThe installation direction does not matter – you can install the lens either way, it makes no difference.

Braided steel brake line BMW E39 Mercedes C-Class AMG 6 piston 4 piston Brembo 4-6 piston brake calipers Brake system conversion

✓ Length: 42cm
✓ M10x1 straight outside
✓ M10x1 straight inside

€114.88*

Available

Product number: SF121

Delivery by Tuesday, 14.07.2026 if you order within the next 7 Hours.

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19 Jahre Expertenwissen

Product information "Braided steel brake line BMW E39 Mercedes C-Class AMG 6 piston 4 piston Brembo 4-6 piston brake calipers Brake system conversion"

Longer steel flex brake line with parts certificate for conversion to larger brake systems, e.g. Brembo 4-,6, 8- piston brake calipers installed in Porsche or TTRS.

Suitable for the front axle of the following models:

Mercedes C-Klasse 280
Mercedes C-Klasse 350
BMW E39
and much more

Advantages compared to original brake lines:

No pressure loss when the brakes are applied, resulting in a noticeably more precise pressure point
simple installation, the original line is simply replaced by the steel flex line
No swelling as with rubber lines
cost savings, as steel flex lines have an almost unlimited service life and do not need to be replaced every 3-5 years
shorter braking distance
marten safety
incl. parts certificate for easy registration
great optic

Technical data:

Length: 42 cm
Connection 1 M10x1 External thread straight
Connection 2 M10x1 Straight female thread
Flare 90° our fittings are so-called hermaphrodites, which means that every connection fits regardless of whether it is concave or convex

Scope of delivery:

2x braided steel brake lines for Mercedes Class and much more
incl. parts certificate for easy registration

We also produce customised sizes. With our steel flex brake line configurator (click here), you can configure your steel flex brake line according to your wishes. (length, colour and connections)

We provide a TÜV certificate with this adapter. This means that the TÜV inspector can easily register the adapter.

Please note that our articles have been designed for racing and motorsport. Use in public road traffic usually requires an individual approval in accordance with § 21 StVZO by an officially recognised expert. Further information can be found under TÜV Süd. For the individual approval, we will provide you with an expert opinion or material certificate, if available.

Connection 1: M10x1 Innengewinde

Connection 2: M10x1 Aussengewinde

Manufacturer: Epytec

length: 42

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Motor	Motorcode
C 350	W204\|272PS(200KW)
C 350 4matic	W204\|306PS(225KW)
C 350 CDi	W204\|231PS(170KW)
C 350 CDi 4matic	W204\|231PS(170KW)
C 280 4matic	W204\|231PS(170KW)
C 300 4matic	W204\|252PS(185KW)
C 280	W203\|231PS(170KW)
C 300 4matic	W204\|231PS(170KW)
C 350 CDi	W204\|224PS(165KW)
C 350 CDi	W204\|265PS(195KW)
C 350 CDi 4matic	W204\|224PS(165KW)
C 280 4matic	W203\|231PS(170KW)
C 350	W204\|306PS(225KW)
C 300	W204\|231PS(170KW)
C 350 4matic	W204\|272PS(200KW)
C 280	W204\|231PS(170KW)

Motor	Motorcode
C 350	W204\|272PS(200KW)
C 350 4matic	W204\|306PS(225KW)
C 350 CDi	W204\|231PS(170KW)
C 350 CDi 4matic	W204\|231PS(170KW)
C 280 4matic	W204\|231PS(170KW)
C 300 4matic	W204\|252PS(185KW)
C 280	W203\|231PS(170KW)
C 300 4matic	W204\|231PS(170KW)
C 350 CDi	W204\|224PS(165KW)
C 350 CDi	W204\|265PS(195KW)
C 350 CDi 4matic	W204\|224PS(165KW)
C 280 4matic	W203\|231PS(170KW)
C 350	W204\|306PS(225KW)
C 300	W204\|231PS(170KW)
C 350 4matic	W204\|272PS(200KW)
C 280	W204\|231PS(170KW)

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