Citroën BX – XPO – Bodywork Revival – Eps48

10 min. read

Mechanical, steering and hydraulic issues seemingly sorted, XPO was not far off ready for the government inspection. However, before presenting the car for test, I thought it best that the car be a little more presentable. Having been stored outside since 2008, in a range of tight car parks, the bodywork was a little worse for wear. The time had come for bodywork revival.

How bad can the paint be?

Casting our minds back to the original XPO articles, we recollect that XPO had become a spares car, destined to live on in many other BX projects. However, the overall condition made the then-owner reluctant to part the car out. The roller coaster nature of XPO’s survival, from scrap to saved to parts car to likely restoration, had more than taken its a toll on the bodywork, which was in need of some revival.

Storage Rash

After more than a decade of storage, shunting and sitting in car parks, XPO has suffered more that a little storage rash.

Storage rash was quite evident in both front wings.

Dents in both wheel arches had been present for some time. The likelihood of my getting them out perfectly was slim, but I was able to push some of them out with my hands. The worst, on the tight radius of the drivers wheel arch was something I would only make worse, so I stayed well away.

Careful application of force helped with bodywork revival, and dent removal.
Careful application of force helped with bodywork revival, and dent removal.

A gouge in the passenger side wing was through the colour coat but not through the primer. Gentle persuasion from behind removed the worst of the dent. However, a full respray would be needed to cure the rash.

Creating optimism

An age-old trick to selling cars is to throw on some thin oil or silicon. As the liquid works into any scratches or surface imperfections, the reflected light starts to give the best possible result, until the first wash.

Silicon spray had encouraged the bodywork revival back in June 2021!
Silicon spray had encouraged the bodywork revival back in June 2021!

While I’m not one for pouring snake oils onto cars to pass them off as better than they really are, in this case, it was useful to see if the car could be brought up before investing in a professional polish. A small amount of WD40 and a gentle cloth started to reveal the paint wasn’t as bad as I had feared.

Optimistic polishing in May 2023 suggested all was not lost on the paint.
Optimistic polishing in May 2023 suggested all was not lost on the paint.

On the wing with the big gauge, I had been contemplating getting the wings resprayed. However, before jumping in with the expense, I hit the wing with a dual-action polisher. Working from 1000 grit to 3000 grit in a small area, the results were fantastic. The decision was clear: preserve as much of the original paint as possible!

Fuel Filler Flap

Ah, the fuel filler flap. What a nightmare this was. Predictably with no engine, I’d never tried to open the flap until it came to fully cleaning the car. Previous access to the fuel tank, to check for contamination, had been through the inspection port under the back seats.

Complete fuel lock failure was quite a surprise in November 2023.
Complete fuel lock failure was quite a surprise in November 2023.

Imagine my surprise when I tried to put the key into the lock, and it wouldn’t move. Some time with various lubricants and I could get the key into the lock, but it absolutely would not turn. Eventually forcing the flap off the cap (they’re usually stuck together) and a bit of brute force was used to get the fuel cap out of the filling port.

Check those crevices. I suspect I could grow a tree in this pile.
Check those crevices. I suspect I could grow a tree in this pile.

In the process of getting the cap out, I received a rather health bath of accumulated crap. Given that the car hadn’t been on the road for a very long time and had been pressure washed to death since it arrived at BXP HQ. This pile just goes to show how much filth gets trapped up behind the long range fuel tank!

Fule Filler Cap

It would be March 2024 before I managed to source a replacement fuel cap!
It would be March 2024 before I managed to source a replacement fuel cap!

Despite resorting to excess force to get the cap out and the snapped plastic locking ring, the fuel cap was in surprisingly good condition. It turns out that there should be a sealing ring between the lock and the housing, which stops rain from getting into the lock. This had long since perished and the aluminium lock housing had oxidised into a solid lump

The locking fuel flap was revived, and it was reinstalled onto the car.
The locking fuel flap was revived, and it was reinstalled onto the car.

Sourcing a replacement fuel cap took months. However, in that time, I managed to free off the lock barrel. Amazingly, the corrosion wasn’t too bad, so with some gentle cleaning, I managed to get all the tumblers in the lock moving again. Well-lubricated,, the revived lock was installed in the new fuel cap. The fuel cap was reinstalled in the fuel flap, and suddenly, it was like there had never been a problem! Frustratingly, the lock is far smoother than my own BX

Replacing the Side Trim

When XPO arrived, it was missing the trim that sits between the rear upper wings and the 16v body kit. This isn’t too unusual as the solid trim pieces become stiff and brittle with age, then warp in the sun.

By July 2024, the bodywork revival was in full swing.
By July 2024, the bodywork revival was in full swing.

While XPO’s original trim had come with the car, it was snapped in two. Fortunately, I still had the trim from J603 LLP. The plastic profile had, not surprisingly, warped. However, with some gentle encouragement and a length of stiff alluminium, I was able to strighted out the trim.

Preparation

Tried and tested methods where used to dispatch the old tape.

The old foam trim tape had become brittle and partially removed, but it was still clinging on. The worst was removed with a plastic trim tool, and the remaining glue residue was removed with isopropyl alcohol and panel wipe.

Re-affixing

The tape arrangement looks a mess, but it works well!
The tape arrangement looks a mess, but it works well!

Some 3M foam backed Very High Bond (VHB) trim tape holds the painted trim to the body. A roll of frog tape and some foam packing hold the pressure onto the trim to ensure an even stick. An often missed application requirement with VHB is that it is pressure activated. The zip-type taping to hold everything in place might look ridiculous, but is works.

Bodywork was looking ever better with every small step.
Bodywork was looking ever better with every small step.

The finished trim doesn’t look too bad at all. You might notice the body areas above and below the trim where it was polished before being glued down. The tape will need to sit for a few weeks before the polisher comes out again, to save ripping the trim back off.

By September 2024, all the trim was stuck back onto the car.
By September 2024, all the trim was stuck back onto the car.

And while were sticking and glueing, the roof trim was bonded back on with Sikaflex where it had been moved to allow the windscreen repair.

Rear Vents

Next up, the body air extractors needed to be tackled. These vents are a major design feature of the BX, but they look really naff when they get old and rusty.

The exposed body vents on the BX are a key part of the styling.
The exposed body vents on the BX are a key part of the styling.

The red paint work around the vent was masked off with the wax-coated ProDec tape, which seems to overspray running to the painted part. The grill area has unstick from the GFRP body kit, which means we can get paint over the whole surface, top to bottom.

The KRAMP paint is designed to go directly onto partially finished surfaces. Fortuantely.
The KRAMP paint is designed to go directly onto partially finished surfaces. Fortuantely.

The wider area is maked off and then sprayed with a generic black acrylic aerosol from KRAMP. The fast-drying 1K paint works really well here. Thin enough to not block the holes and matte like the original finish.

I don't think the photo does justice to how good the new paint looks on the grills.
I don’t think the photo does justice to how good the new paint looks on the grills.

I’ve been using the KRAMP aerosols more and more on the tractors, and the finish is really durable. Another job i need to do on my own BX!

Bumpers

Ah, the bumpers. When buying XPO, I knew the rear bumper was missing and the front a little tatty. Fortunately, I had some replacement bumper options. Although I didn’t know at the time that XPO’s original bumper lived on at the back of BAH

Bumper Painting

I had a few rear bumper options, but a chance visit to a local Citroen Specialist gave me the opportunity to buy a good condition rear 16v bumper.

A replacement bumper was sourced to replace XPO's missing original.
A replacement bumper was sourced to replace XPO’s missing original.

This replendent white bumper made a great start point for a replacement for XPO and saved me a trip to the garage loft!

Bodywork revival was really taking shape with a plan for fresh paint.
Bodywork revival was really taking shape with a plan for fresh paint.

A friend and professional painter had already offered to paint up the bumpers and made up a swatch to check the colour match. Pretty good I thought!

Freshly painted bumpers were returned the weekend after they went out to paint.
Freshly painted bumpers were returned the weekend after they went out to paint.

While painting the rear bumper, the front bumper was also repaired, tidied and repainted.

Bumper Brackets

Before going off for a repaint, new brackets were attached to both the front and rear bumper with Sikaflex. The reproduction of the bumper brackets has been covered in a previous article, so I won’t labour the topic here. Instead, enjoy a montage.

Bumper Trim

One of the most satisfying parts of the XPO project has been bringing the bumpers back to life. This is more than just a bit of paint but years of getting parts remanufactured for just this moment.

Trim tape needs to be carefully applied.
Trim tape needs to be carefully applied.

The sides of the trim inlay are lined with ProDec before the 3M VHB tape is offered up. From past experience, the tape is super sticky and will make a mess of the paint if I slip while offering the paint to the channel.

The recess for the trim is almost the same width as the tape!
The recess for the trim is almost the same width as the tape!

You can see in this close up just how snug the tape fit is and the potential for getting it all wrong!

Bodywork satisfaction, new paint, new brackets and new trim.
Bodywork satisfaction, new paint, new brackets and new trim.

The finished result is blooming marvelous. Fresh paint, fresh bracket and fresh trim. Now i just have to make sure i dont damage them!

Bumpers are finished with new spots and false intake stickers.
Bumpers are finished with new spots and false intake stickers.

One finishing touch for the bumpers is new spot lights, and new stickerd for the false inlets. These stickers where cut from a roll of matt black vinyl using a plotter and came out rather well!

Bath Time

Before a full machine polish is carried out, the paintwork needs a thorough deep clean to remove any dirt, debris or more likely oils.

The whole body needs cleaning before polishing.
The whole body needs cleaning before polishing.

A warm but over cast day made for the perfect weather to get the bucket and hose out. And why wash one BX when you can wash two?

Four washes in, and XPO is still filthy!
Four washes in, and XPO is still filthy!

It would be fair to say that after a few years in the garage, XPO had picked up a bit of dirt. This was the FOURTH wash bucket and still the filth was pouring off the car.

The clay bar does a fantastic job of lifting blemishes.
The clay bar does a fantastic job of lifting blemishes.

Back in the garage, a clay bar was used to drag out the worst imperfections on the larger areas. The difference was night and day when running a cloth over the bonnet.

Roof Graffiti

Before the bodywork revival could be completed, there was one area I needed to tackle on the roof. Remembering that XPO as once going to be scrapped, it had been used to test out some paint. Some less-than-subtle black paint.

Enamel graffiti, nothing to see here!
Enamel graffiti, nothing to see here!

It turns out the paint was some sort of black engine enamel. The dual action polisher made a notable impact on removing the paint with 1000 grit polish. However, I was concerned that the DA would eventually cut through the red paintwork.

Power tools were not going to be the solution.
Power tools were not going to be the solution.

And so began the manual process. Over several nights, I slowly removed the enamel paint with some 3000 grit wet and dry paper and water. At the end of day one, the task seemed like it would never end.

Slowly and carefully, 3cm circles at time, the black paint clears.
Slowly and carefully, 3cm circles at time, the black paint clears.

By the second day, the roof trim finishers where starting to look pretty good. A glimmer of hope was forming that I would not need to respray the roof.

A big step in the bodywork revival, the black is (almost) all gone!
A big step in the bodywork revival, the black is (almost) all gone!

Then, by day forty twelve, more than 95% of the paint was removed. A few bits still remained at the bottom of joints where the wet and dry wouldn’t fit. But from the face of defeat, I had clutched a victory!

Cut and polish

In the early days of the XPO project, I had the full intention of giving the car a full cut and polish myself. I’d bought the kit and the product and practised in a few areas. But that was the start of the project, and when the guy who had painted the bumpers offered to polish it for a relatively low hourly rate, I couldn’t say no!

Mid September 2024 and the end was in sight for the bodywork!
Mid-September 2024 and the end was in sight for the bodywork!

An early morning start on a cool morning was expected to be followed by a whole day of polishing.

Four hours of polishing and the turd was gleaming!
Four hours of polishing and the turd was gleaming!

But not long after mid day, and a solid four hours of machining, and the polished car emerged from it’s slumber.

I honestly stood around the car for an hour, admiring the bodywork.
I honestly stood around the car for an hour, admiring the bodywork.

Even now, I can’t get over just how well the paint cleaned up on XPO. Despite years of semi-neglect and living outdoors. Despite being red in finish with a factory single stage paint. And despite all the odds, the paint came out gleaming!

Finishing Touches

Now I was into the finishing touches. Freshly painted bumpers and windscreen grill to go on, and pretty soon an MOT beckoned.

Tailgate

I debated what to do with the tailgate for a while. The black paint around the registration plate was faded and battered. I had planned to just polish it up as best as possible. However, after polishing the rest of the car, a quick touch up wasn’t going to cut it!

Measure thrice, stick once. Unless we're talking kitchen sinks.
Measure thrice, stick once. Unless we’re talking kitchen sinks.

So, the badges came off, after careful measurement! I certainly wouldn’t want them to be stuck back on in the wrong place.

More paint, and the pace to get the car finished is picking up!

The KRAMP matt black paint came out again and several coats applied.

More VHB is used to re-affix the ABS sticker after cleaning.
More VHB is used to re-affix the ABS sticker after cleaning.

The ABS badge was cleaned and new tape applied while the paint was curing.

The rear end really was looking good now. Suprising what a little paint does.
The rear end really was looking good now. Suprising what a little paint does.

And a few days later, the bade was reapplied to the near perfectly finished tailgate.

Bumper bracket

Once the front bumper was back on, I had to make up a retaining plate. The original plate had rotten away and ripped out the mounting holes in the fibreglass bumper.

I really wanted to'add lightness' to the panel.
I really wanted to ‘add lightness’ to the panel.

After some CAD engineering and careful marking and cutting, a replacement bracket was made up in aluminium sheet. I’d love to tell you this was because the material is light weight and this is a race car, but it was simply what was lying around!

Baby shark do doo do do, no, just me?
Baby shark do doo do do, no, just me?

Stainless pan heads fix the plate to the bumper, almost looking like teeth. I did contemplate painting the fixings black, but the ‘teeth’ rather amused me!

Next Stop, MOT!

Well, that was an epic article, and the longest in the series. Fortunately, the final two articles will be shorter. Will XPO pass the MOT? And where will her first outing be to? Find out in the next and penultimate article!

Until next time!

M


NEXT – Eps49 The Finishing Line
PREV – Eps47 Wheel Alignment

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