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Showroom: Drumul Lunca Corbului 2, Sector 3, Bucharest, Romania
On a Mercedes-Benz C-Class W203 saloon, 4-door, we fitted a set of K39 steel roof bars made for the 2001-2006 model. We did the fitting in our shop at Drumul Lunca Corbului 2, Sector 3, Bucharest, Romania.
In brief
- Car: Mercedes-Benz C-Class W203, 4-door saloon, without roof rails.
- Fitted: K39 K1 steel roof bars, 1,300 mm, with 4 fitting systems dedicated to the W203.
- Capacity: 55 kg on the roof bars; the Mercedes manual gives 100 kg for the roof, so the limit that counts is that of the roof bars, 55 kg.
- Fitting: directly onto the roof, between the attachment points marked on the roof, with the Allen key from the package.
About the car: Mercedes-Benz C-Class W203 saloon
The Mercedes-Benz C-Class W203 is the second-generation C-Class. The 4-door saloon was built from March 1999 to March 2007, and received a facelift at the beginning of 2004. The same generation also had the S203 estate and the CL203 sports coupé, so when ordering it matters to know exactly which body you have.
The W203 saloon has no roof rails. The Mercedes-Benz owner's manual requires the roof bars to sit only between the attachment points marked on the roof, and gives a maximum roof load of 100 kg. The manual also says that, after fitting, you must be able to open the sunroof and the boot lid fully. That is why on this W203 we used a kit that fixes directly onto the roof, designed specially for the 4-door version, and not roof bars for cars with roof rails.
What we fitted on this Mercedes C W203
We chose K39 steel roof bars for Mercedes C (W203), 4-door, 2001-2006 model, from the K39 K1 system, made for cars without factory roof rails. The package contains 2 black steel roof bars of 1,300 mm, 4 feet, 4 fitting systems dedicated to the W203 and an Allen key, the only tool you need. The roof bars have a 20 x 30 mm profile and are wrapped in a protective plastic layer, and the metal parts have a rubberised coating for better protection against corrosion. The set is TÜV and ISO approved.
On K39 roof bars you can fit bike racks, roof boxes or ski racks, on one condition: the accessory must have a classic U-bolt fitting of at least 30 mm, because the roof bar has no T-track on top. The set has no lock; K39 is designed as a simple solution, with good value for money for the W203.
Video: K39 K1 roof bars overview
Useful details about K39 roof bars on the Mercedes C W203
- Bar dimensions: 1,300 mm long, 20 mm high and 30 mm wide, in black steel.
- Set weight: 4 kg for the 2 roof bars and the 4 fitting systems.
- Load calculation: K39 roof bars support 55 kg and the W203 roof 100 kg, so you go by 55 kg. The weight of the accessory is deducted from this value: a roof box together with the luggage in it must add up to at most 55 kg.
- Compatible accessories: only with a U-bolt fitting of at least 30 mm; K39 roof bars have no T-track on top.
- Instructions: the fitting manual is included in the package, and the short video below shows the K39 K1 system.
- Check after fitting: fully open the boot lid and the sunroof, if the car has one, as the Mercedes manual requires for the W203.
Frequently asked questions
Which roof bars fit a Mercedes C-Class W203 saloon?
On a Mercedes-Benz C-Class W203 4-door saloon, roof bars fixed directly onto the roof with a dedicated kit fit, because the car has no roof rails. We fitted K39 steel roof bars for Mercedes C (W203), 4-door, 2001-2006 model, fixed between the points on the roof indicated by the Mercedes manual.
How much weight can I put on K39 roof bars on a Mercedes C W203?
K39 roof bars for the Mercedes C W203 have a maximum load of 55 kg, and the Mercedes-Benz manual gives 100 kg as the maximum roof load of the W203 saloon. The lower limit applies, that is 55 kg, from which you deduct the weight of the bike rack or roof box.
Can I fit a bike rack or a roof box on K39 roof bars on a Mercedes C W203?
Yes, on K39 roof bars on a Mercedes C W203 you can fit bike racks, roof boxes or ski racks that have a classic U-bolt fitting of at least 30 mm. K39 roof bars have no T-track, so accessories that fit only into a track cannot be used. You will find the fitting steps for a bike rack in our guide to fitting bike racks on roof bars.
We are waiting for you in the showroom
If you have a Mercedes C-Class W203 or another saloon without roof rails, our SuportBicicleta.ro showroom is at Drumul Lunca Corbului 2, Sector 3, Bucharest, Romania, where we choose the right kit together. You can see the whole range of roof bars and roof boxes, and for questions you can reach us through our contact page or at [email protected]. contact us through our contact page or at [email protected].
You can also message us on WhatsApp.
Sources: Mercedes-Benz C-Class (W203), Wikipedia: years of production, body codes, 2004 facelift · Operator's Manual C-Class Sedan, Mercedes-Benz USA 2005, p. 252 and p. 430: attachment points, roof load 100 kg · SuportBicicleta.ro guide: fitting steps for bike racks on roof bars · product pages on suportbicicleta.ro
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