F10 530d: Black leather rear-seats and door cards WIN - front-seats FAIL!

Lovely front seats do not fit.

Thought I would treat the F10 to a nice leather interior, replacing the tired and fluffy cloth front seats and scratched / dirty door cards, after spotting a complete set from a 2014 car on eBay. I managed to get £100 knocked off the price and drove down to Stourbridge to grab them with a distinct feeling that it was too good to be true. I had to climb nearly 20 feet up a ladder to retrieve them, but they were seriously mint - honestly, not even a mark on any bit of leather - so I parted with the measly £300 and brought them home.

My gut feeling turned out to be right. While the rear seats and door-cards are a perfect fit, the front seats are not. From mid-2013 onwards the F10 floor-pan was updated, along with the mounting-points for the front seats and this means that the runners on my new seats are a couple of inches narrower than on my original 2010-13 seats, which are clearly wider at the base. There is no way to swap the runners, the seats are just too different in design and I will write a more detailed guide on this soon. Annoyingly, the electric plug fits and the motors operate, though they throw up too airbag warnings.

Door cards are straight swap.

Modifying the seats or floorpan to fit is just too much work and will not look very nice, so the only way to go is wait until a pair of front seats for a 2010-13 car come up and try to part-ex mine or at least sell them later. Either way, this could end up costing me more. Regular SE seats are quite thin on the ground for the earlier cars and M-Sports are upwards of £400.

Rear seats fit great.

** Correct seats now acquired here: https://beemerlab.blogspot.com/2016/08/f10-530d-correct-front-seats-acquired.html **

E21 316: Update + MOT Pass

After my disastrous few weeks I managed to get hold of a Bilstein strut-insert and get it onto the car along with the longer springs, meaning it was finally back on the road and in an state worthy of the MOT test. I cautiously rolled down to the test-station on Saturday and am glad to say the E21 passed with flying colours!

Bilstein damper is strong, but will be a pain with the short springs.

This was a relief considering the slightly dodgy seat-frames I made bolted through the floor-pan, which stuck out like a sore thumb when it was up on the ramps, along with the scuff marks where I've grounded the underside, but with the car at a more standard height off the ground this didn't see to bother them and there was no problem with the chassis at all.

Oddly, the guy told me that the split-pins were missing from the castle-nuts on my steering track-rod ends and this would actually be a fail under normal circumstances, but they could see I'd been working on it and decided to give me the benefit of the doubt. This was true, I'd had them off swapping the springs and hadn't bothered to replace the split-pins as they would be coming straight off again to put the short springs back. That was decent of them to let it go, as it would have been beyond frustrating to lose another week to something so trivial and shows just what a pain the UK MOT test is.

Folded up and with a 1/4 inch thick layer of
pallet-wrap to send as a parcel.

Spending on the E21 has been a bit out of control since buying the E30 seats and it is still in desperate need of the wheel-arches finishing off. By this point, I'm past what I can recoup if I sell the car. I'm still using my E39 as my daily, the E21 has had no use for nearly a month with no MOT and finally, due to a planned move, it's looking like I will have to let her go anyway, unless I can find somewhere cheap enough to store it. I had hoped to have the arches skimmed off and painted by the guy who did the respray, but money is tight so I will be buying a rattle-can and doing the best I can with them.

Thankfully, I've managed to generate a bit of extra cash to pay for the strut-debacle [this post], by selling some bits on eBay, like a battered old set of alloys, an E36 nose-cone and other bits I had lying around, as well as the original beige passenger seat from the E21 - I think I have enough seats for the car now. I hope the seat arrives to the buyer OK, as I had to practically shrink-wrap it to be able to send it Parcelforce [£27], pictured, as the original method of courier was just over £60!

My spare set of E21 ash-trays is not selling on the other hand and is still on the site here - http://www.ebay.co.uk/itm/181235987123.

E21/E30: Crude Rear Seat Repair.

When the seats arrived the rear one had a noticeably big tear on the top of the back-rest. By the time I'd finished cleaning them however, there were now 3 tears along the same strip. I was being super-careful with the scrubbing brush, but after 25 years under the back-window the glue is coming away and the strands of twill fabric separate very easily indeed. An attempt to repair one of the splits only made it worse as the material is stretched by the glue and can't wait to rip.

I considered throwing the stock beige seats back in, but then had a moment of er, inspiration, and found a strip of spare material wedged into the frame behind. I cut it into patches and stuck them down with fabric spray-adhesive, £7.99 but it's strong stuff.

It's not the prettiest of repairs, despite matching the lines up, but looks better than threadbare, won't get any worse now and the interior of the car looks a lot fresher with them in I must say. If they're going to stay though, a permanent cover-up will be needed - probably in the form of a parcel-shelf re-trim. The beige carpet could do with a refresh, so I may extend the fabric past the shelf and have it cascade over the back-rest slightly. We will see.

E21 316: Fitting E30 rear sport-seats - or having a go anyway.

Stock fit works, but leaves big gaps.

As with the front seats I used HSVTurbos build [here] as a rough guide. His rear bench-seat is the all-sponge kind, whereas mine have the sponge base, but a sprung back-rest, possibly due to the folding arm-rest or model year difference. This means I have a metal frame to work with on the back-rest, so it can be pressed flat to greatly reduce the proud fit at either corner, but also means more needs to be cut away than just blobs of sponge. The E30 coupe's rear seat-pan, the body-tub and front doors are almost identical dimensions to the E21, so the rear seat-base just slots in. There are no brackets along the bottom-edge to clamp the squab down, but with it seated flat and wedged under the back-rest these may not be necessary, although fabbing some up might be worthwhile to stop the carpet sagging down in the footwells.

The general shape of the back-rest is more or less the same as the E21 and the hooks fit into the existing brackets, though the E30's parcel-shelf is curvier, causing the back-rest to stick out slightly at the top corners. The back-rest also sits slightly higher, leaving an inch gap at the bottom between it and the squab. If these gaps don't bother you then the seat works fine like this and will only need a little chopping off each upper corner to achieve a pretty good looking fit. If they do, then a little more work is required to seat the back-rest flush and minimise the corner gaps.

The main problem here are the seat-belt reels, which protrude from the bulkhead and fill up where the upper corners of the back-rest want to be. The back-rest bolsters are also slightly too broad, though the centre of the rear frame is more or less a perfect fit to the E21 bulkhead.

Modifying the Back-rest:

1. Bend up the small hooks holding the cover material in place over each side edge of the back-rest and pull the fabric clear of the metal frame.

2. Cut away the side-support on each side of the frame, leaving just the edge of the 'mattress' frame that holds the springs, as in the photo below. The brackets at each bottom corner should come away here too.

3. Cut in half the metal bar that runs between the centre and bolsters, the one attached to the top spring in each corner, and trim away the top spring as close to the frame as possible.

4. Cut the metal bar running along the top of the frame about 4" in from either top corner

5. Cut away the boar-hair matting along each side of the back-rest to reduce its depth by about half.

6. Cut a 2" square from each top corner of the boar-hair matting to give a recess where the seat-belt can run freely back into its reel.

7. Replace the fabric cover, hooking it to points on the mattress-frame and tucking it under the springs. At each top corner, I pierced a hole and ran a cable-tie through to hold the folded fabric clear of the seat-belt reel.

Fitting to the E21:

To get the back-rest sitting flush to the seat-base the original mounting-brackets may have to be abandoned in favour of slotting the hooks on the bulkhead directly into the top of the back-rest frame. The original lower brackets are attached to the frame here and may need cutting off for a tight fit.

1. Hook the top lip of the back-rest frame over the metal hooks on the bulkhead. Press hard to make sure the metal bar gets over the hooks and not just the boar-hair and fabric. Give each side a good knock down onto the hooks. The top of the back-rest should be about 5mm lower than the parcel shelf.

2. Fit the centre arm-rest and lock the clips into place. The back-rest should sit a bit proud of the bulkhead and need pushing flat. Drill two holes through the back plate of the arm-rest and bulkhead. Fasten it together with two bolts or pop-rivets. Not only will this hold the seat in place, it will also stop it moving when the arm-rest is lowered.

E21 316: E30 Sports Seats vs. Re-covering the Recaros

Saw these absolutely divine Recaro sports-seats from an early E30 Baur cabriolet on eBay. They're all but identical to the Recaro/sports-seats from the E21, but have different subframes for the E30, not that it would make any difference now I've started cutting out the stock mounts and the inner side of the E30 base fits perfectly to the inner-mount anyway, so would be a bit neater/stronger than my all-custom base. Only snag is, the price is a little more than I'm willing to pay as the rear seat and door-cards are included. I've got them down a bit, but I'm sticking to my upper limit and they're having none of it. 

It got me thinking, the shape isn't too different from the RS Turbo Recaros I have, it's just the colourful Ford fabric that doesn't suit, but there may be a way to create some ultra-cheap 'replicas'. I figure the stock E21 seats aren't worth much at all, so there may be enough decent fabric left on the two to re-cover the centre-sections of the Recaros in beige cloth. This leaves the bolsters/head-rest grey alcantara, which is where fabric spray-paint comes in, about a tenner a can off eBay, to make them dark-brown. I whipped the cover off one of my E21 seat to weigh it up and it does look possible. On the other hand it has the potential to mess up a great pair of Recaros that are worth quite a lot more still than I previously thought, as well as condemn a tatty but useable pair of E21 comfort-seats, which I could at the very least donate to someone. At the risk of the end product looking naff, I don't think it's worth the sacrifice.

** UPDATE - Another pair came up on eBay yesterday and guess what, the guy emailed back about the original set accepting my offer. The second pair are a bit dirtier and the back seat is wrecked, but the seller will come to about half the other offer, only thing is he wants collection and they're in Cardiff. It will cost me the difference to drive down there, plus a day spent sat in the car. To be worthwhile I'd have to get this second set for buttons, so I called up the original guy and bought the set above - they'll come Monday and I can use the rear bench. I'm glad this seat problem is finally put to bed as the MOT is a week on Saturday and I need perma-fixed seats!

E21 316: Recaro Seat-Base Adapter - Finally solved!

I'm all for keeping things so they can be converted back to stock later on, but fitting seats with the E21 base-mounts is a nightmare. Once you've overcome the different height on each side and the mounts being too far apart, the seat has to be set low enough to be able to drive the car. I've tried a couple of times and just can't deem a complex two-height setup safe enough to be permanent. The Planted adapters from this post are just too expensive - I don't have £300 to spend on brackets for seats I had lying around so, with regret, the outer [higher] mount has had to be cut out. Gleefully this has done the trick and the passenger seat is now mounted at the perfect height and slides back and forth like it's on ice, so with a nod to retaining originality, this is the first thing anyone wanting to fit sportier seats should do.

Ripping out both mounts gives a blank canvas to put any seat-frame in any position, but a bit more research taught me that the inner mounts by the trans. tunnel can be re-used when fitting upgraded BMW seats, - Recaros, E30 seats etc. - which is what I would fit in future ideally, so they stayed and the outer mount came out to reveal 5" strip of flat surface, the only bit in this area of the floor-pan. Given the choice I would use steel box-section here to raise the flat section up to the same height as the inner mount and do some welding, but I just cant find it anywhere locally in the right size. I got some immense inspiration off this thread on Bimmer-Forums - http://forums.bimmerforums.com/forum/showthread.php?1757170-E30-sport-seats-in-e21 - in particular this guy, who used a block of wood - http://forums.bimmerforums.com/forum/showthread.php?1584670-HSVTurbo-quot-Mac-quot-Build-Thread. Would had been considered originally with the Recaro project, but not ruled solid enough. HSVturbo showed it can work here though and I guess as long as the bracket is bolted well through the floor, the would should be plenty solid as a riser and won't twist about.

It transpired there was a 2x4 type beam leant up in the shed that was pretty much the exact height of the inner seat mount, so I chopped off a 55cm piece of it, to match the full length of the inner mount - I can see the extra PVC-pipe thing works for HSVturbo, but one piece has got to be more secure. I then ran a length of angle-steel from left to right at each end of the inner-mount and bolted it through the existing holes. The angle-steel also sits flush against the front and rear face of the mount and wood-block. Lastly, the angle-steel is bolted through the wood to the floor-pan. Now I have two cross-bars to bolt practically any seat onto, good enough to rival the Planted adapter, well not quite, but it's an inch lower, solid and cost a whopping £6.99 to make. The carpet even fits snugly back over it, with a few slits for the cross-bars to go through.

To mount the Recaro on the cross-bars the base-mounts needed removing entirely. These are held to the sliders some of the strongest rivets I've seen and needed grinding and chiselling out, but thankfully not enough to mess up the holes, which I re-used to mount it with short M4 bolts. For the seatbelt-buckle anchor I just used a short piece of angle-steel, but it will need replacing soon with either a right-angle bracket at least 2.5mm thick, or better still some stalk type buckles from an E30. Some E30 Recaros would go nice with those too...

E21: Custom Seat-Base vs. Planted Adapter

Had a go at fitting the passenger Recaro seat, this time using the Ford sub-frame and slider instead of the BMW one. The driver's seat I did last year has sunk into the BMW slider and won't adjust anymore, not to mention the seat is too high. OK, I've got used to it and it's holding for now, but bolting things on top of the E21 slider/base plain doesn't work, is ugly and will need improving before the MOT. Using box-section etc. that won't sag down is out too - my head would be pressed against the roof.

For this side I chopped the left side of the Ford subframe so it would fit on the floor against the original outer seat-mount. This mount is an over an inch higher than the inner mount next to the trans. tunnel and this just adds to the problem, as the mounts are too wide apart for most seats anyway, so simply raising one side is no good, you need cross-bars. Cutting the Ford sub-frame and bolting it through the floor-pan on the outer side is the only way I could see keeping this mount, so stock seats could be later refitted, and without it all being set too high. The inner mount is just the right height, so I reused the bolt-holes to mount a piece of angle-steel, which the seat then bolts on to about half an inch further out. To bolt on to the angle-steel, the base-mounts had to be ground and chiselled off to leave just the sliders on the right side, which was a right pain. The placement of the seat was now perfect, but the funny shape of the E21s belly-pan, bespoke Ford mounts and custom-made risers did not make for the strongest design. The seat felt solid to sit in, but once I'd moved it back and forth a few times I felt the left side mounts twist and the sliders jammed. You could now feel it moving around a bit, so without a safety pass this is another fail.

It seems that there is just no way to keep the stock mounts and be seated nicely, unless you have better tools and materials than us and can fabricate a very flat, snug fitting adapter plate, with feet on one side and a seatbelt bracket. Believe it or not, they exist, made by a company called Planted in the US, available from a few sites over there [http://www.stableenergies.com/Planted/products/393/] and eBay [http://www.ebay.co.uk/itm/Passenger-Seat-Bracket-for-MOMO-NRG-SPARCO-RECARO-BRIDE-BMW-E21-Series-1975-1979-/120994172571?pt=Motors_Car_Truck_Parts_Accessories&hash=item1c2bd08e9b], though pricey at £150, each!

They're very nicely finished in 3/16" thick steel, bolt straight into the existing mounts and have a series of oblong holes to drop most types of sport seat onto, Sparco, Bride, MOMO, NRG, Recaro are menioned, though you don't get sliders. I've seen one with sliders made by Corbeau [http://www.harrisonmotorsports.com/corbeau-seat-brackets.html] available through Demon Tweeks, again £150 and will likely need adapting to fit non-Corbeau seats. I've been weighing up buying these for the best part of a year, so to weigh up the pros and cons they're an easy straight fit and let you keep the stock base-mounts, but with sliders on top the seat still sits too high and the crazy £300 cost for the pair is getting into E21 Recaros territory, so really I think it's worth having one last go at a custom adapter.

E21 316: Recaro seat fitting, 1st attempt...

E21 316: Recaro seats and re-trim!

These weren't planned like, they just fell into my lap yesterday. A workmate has been after an old mini-moto quad-bike I have for his son's birthday present. Only thing is he's skint, but I ain't used the bike since last summer so agreed to swap it for these awesome Recaro bucket-seats. They're a little bit more modern than the E21 is, but similar to the Recaros in the 323i so they wouldn't look too out of place and they're in great nick. These are from an Escort RS Turbo though, so the centres are trimmed in naff Ford patterned velour and need something a bit more in keeping with the beige 316 interior. I bought the most tan looking alcantara type material I could find today and it's still turned out looking a bit orangey and bright. It was Sunday afternoon I guess and the seats look and feel good, but I may have to hold out on the colour.