Which BMW E46 Bucket Seat Mounts Should You Use?
Seat fitting guide
The BMW E46 takes bucket seats from Cobra, Corbeau, Sparco, OMP and most other brands, and it is one of the cars we fit seats to most often. With so many mounts on the market, the usual question is which one to use.
The answer comes down to whether the seat needs to slide, and whether it is a side mounted bucket or a base mounted reclining seat. This guide goes through each option we list for the E46.
- Fixed side mounts for the E46 come from Cobra, QMS, PCI Racing and SW Motorsports
- For Cobra bucket seats, Cobra's own E46 and E36 side mounts are the safe choice
- For a sliding bucket seat, the PCI Racing E46 sliding sub frame is a complete kit
- Base mounted recliners suit the frame from their own brand, or a Planted Technology bracket
- The OMP E46 subframe does not fit the E46 M3
- The E46 cockpit is roomy enough for most seats from the major brands
What is on this page
Fixed position side mounts
A side mount bolts to the sides of a bucket seat and to the E46’s own floor mounting points, so nothing needs drilling or fabricating. A fixed mount sets the seat position at installation, which suits a track car with one regular driver.
For Cobra bucket seats such as the Imola, Suzuka and Monaco Pro, we recommend sticking with the Cobra steel side mounts made for the E46 and E36, to be sure of the fit. They are FIA approved, and you order a driver side and a passenger side for both seats.
For most other side mount bucket seats, the QMS and PCI Racing mounts give a good range of adjustment and a fixed position that lines up with the steering wheel. Cobra seats can use them too. PCI Racing’s E46 adjustable seat mount gives the lowest seat position in their range, because it leaves out the slider. Corbeau side mount seats use their own bolt points, so check with us before pairing one with an aftermarket mount.
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SW Motorsports also make a steel side mount pair for the E46, in driver and passenger side versions. Like the others, it bolts to the floor points in place of the standard runners, and the seat then fixes to its sides.
Whichever you choose, the side mount decides your final seat height and how far back you can sit, so tell us your height along with the seat.
Sliding seats and base mounted recliners
If the bucket seat needs to slide, for a car still doing road miles or shared between drivers, our choice for a side mounted seat is the PCI Racing E46 sliding sub frame every time. It is an all in one kit with the frame, runners and side mounts, so you only need the seat to go with it.
For a base mounted reclining sport seat from Sparco, OMP, Corbeau or Cobra, stay with the direct fit frame from the seat’s own brand. The Cobra E46 subframes suit Cobra seats and the Corbeau E46 sub-frames use Corbeau’s own bolt pattern. Sparco’s E46 sub-frames are sold one per side. The OMP E46 subframe fits the standard floor of the 316 to 330, but not the E46 M3, which has different mounting points.
Planted Technology brackets are the other route, with bolt points for most seat brands. Planted list separate parts for the coupe and the saloon, so tell us the body style and whether the car is an M3.
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![Planted Technology BMW 3 Series Sedan [E46 Chassis] (1999-2005) Seat Bracket](https://www.sportseats4u.co.uk/wp-content/uploads/sites/2/2026/08/SB121DR-2-300x300.jpg)
![Planted Technology BMW 3 Series Sedan [E46 Chassis] (1999-2005) Seat Bracket image 2](https://www.sportseats4u.co.uk/wp-content/uploads/sites/2/2026/08/SB121PA-2-300x300.jpg)
Which seats suit an E46
The E46 has a fairly spacious cockpit, so it takes a wide range of seats from all the major brands, from a Sparco R100 reclining seat to a Cobra Nogaro Club Sport bucket. That means you can choose the seat that suits your body shape. Garreth’s advice is to send us your height and waist with what the car is used for, and we will suggest seats that fit both.
If you have already fitted a bucket and find you sit too low to see over the dash, our guide to sitting too low in an E46 covers the mounts that bring you back up. For reclining seats in the coupe, see our E46 coupe reclining seat guide.
Which side mounts should I use for Cobra seats in an E46?
We recommend Cobra’s own steel side mounts for the E46 and E36, which are FIA approved and bolt to the original floor points.
Can a bucket seat slide in a BMW E46?
Yes. The PCI Racing E46 sliding sub frame includes the runners and side mounts, so the seat slides fore and aft.
Does the OMP E46 subframe fit an E46 M3?
No. The M3 has different floor mounting points, so ask us for the right frame.
Do I need extra side mounts with a PCI Racing sub frame?
No. PCI Racing kits are complete, so you need only the seat and the frame.
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Our usual answerMatch the mount to the seat
Cobra mounts for Cobra seats, PCI Racing for a sliding bucket, the seat's own brand for a recliner.
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