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Description

AST Weld-in Roll Cage BMW E46 Sedan V3

The AST Weld-in Roll Cage BMW E46 Saloon V3 is a full roll cage for the BMW E46 with 4-door saloon bodywork. This Weld-in E46 Saloon V3 carries over everything from the V2 and adds door bars in both doors, the step that really brings side-impact protection up to standard.

The cage is designed and built by AST Roll Cages in Spain, for drivers who race on a circuit or in a competition where side protection is expected or mandatory.

Key benefits

• Door bars in both doors that stop side intrusion.
• Front reinforcement bars running to the bulkhead, carried over from the V2.
• FIA homologation: AST lists the numbers N-5658 and A-5658 for this model.
• 8 welded mounting points for a permanent connection with maximum rigidity.
• E355 steel, 45 mm main hoop and 40 mm for the rest of the structure.
• Weight 71 kg according to the manufacturer.
• Complete kit with gussets, reinforcement plates and mounting hardware.

Suitable for

BMW E46, 4-door saloon

• BMW E46 4-door saloon
• Type: weld-in roll cage, version V3
• Drifting, track use and rallying

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN03832
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: V design
• Type: full roll cage, weld-in (permanent)
• Main hoop: E355 steel, 45 mm diameter
• Secondary structure: E355 steel, 40 mm diameter
• Foot plates: 3 mm steel, custom-designed for each car
• Mounting: 8 welded mounting points on the bodyshell
• FIA homologation number: N-5658 / A-5658 (as stated by AST Roll Cages, for the BMW 320i)
• Weight: 71 kg (manufacturer’s figure)
• Finish: unpainted weld-in kit
• Included: weld-in kit, gussets, reinforcement plates, bolts, washers and nuts, documentation, fitting instructions and sticker set

Fitting and delivery

The cage is built to order; the standard delivery time is 15 to 35 working days. Because of the door bars, the interior has to be stripped further than with the lighter versions, and getting in becomes noticeably tighter. Leave the welding to a professional. AST digitises the bodyshell with laser scanners and designs the cage in 3D, so that it fits your car exactly.

With door bars in both doors, the V3 is the first weld-in version that also gives you serious side protection.

Why choose this Weld-in E46 Saloon V3 roll cage?

In drifting and track work, a large share of the risks comes from the side, and that is exactly where the protection of a lighter cage ends. The door bars of this version close that gap and at the same time increase the car’s torsional rigidity along its entire length. For anyone competing in a class that requires a homologated structure, this is the logical starting point.

Frequently asked questions

Is this roll cage FIA-homologated?

AST Roll Cages lists the homologation numbers N-5658 and A-5658 for the Weld-in E46 Saloon V3. Always check the regulations of your own federation or organiser yourself, as requirements differ by class and by country.

How much room do I have left when getting in?

The door bars run through the door, so getting in is tighter than with the V1 and V2. That is the price you pay for side protection; with bucket seats and a harness it is perfectly workable in practice.

What is the delivery time?

The standard delivery time for this roll cage is 15 to 35 working days.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.