BMW 730Li Patch Work: Seamless Colour-Matched Repair

Not every car needs a full respray. The BMW 730Li is a long-wheelbase luxury saloon with an elegant metallic grey finish. This one came to our workshop for patch work: repairing and refinishing damaged areas so they match the rest of the car perfectly.

What is patch work?

Patch work (also called a spot repair or partial respray) means repairing and repainting only the damaged areas of a car, not the whole body. It’s ideal for:

• scratches and scuffs on one or two panels;
• car park dents and door dings;
• stone chips and kerb damage;
• minor accident damage to a bumper, door or wing.

It’s faster and much more affordable than a full respray, while keeping as much of the original factory paint as possible.

Why colour matching is everything

On a luxury car like the 7 Series, a repair is only successful if no one can find it. That comes down to colour matching:

• Paint code first. We start with the car’s factory paint code to get the right base colour.
• Matching the car, not just the code. Paint fades with age and sun, so the same colour on two cars can look slightly different. We tint the mix to match your car as it is today.
• Metallic flake. Metallic greys and silvers have flakes that catch the light. How the paint is sprayed affects how they settle, so technique matters as much as colour.
• Blending. New paint is blended gradually into the neighbouring panels, so there’s no hard edge where new meets old.

The patch work process

1. Assess the damage and plan which panels need refinishing and blending.
2. Repair dents and fill imperfections, then sand the area smooth.
3. Prime the repair area.
4. Apply the colour-matched base coat, blending it into the surrounding paint.
5. Apply clear coat over the repair and blend area for an even gloss.
6. Bake, polish and check the match from every angle and in different light.

Why metallic grey suits a long luxury saloon

Metallic grey is one of the most fitting colours for a car like the 730Li. It’s refined and understated, and the metallic flake highlights the long, clean side profile in sunlight. It also hides everyday dust better than black, which matters for a car that’s used every day. That’s why keeping the factory colour flawless, rather than changing it, made sense for this car.

Patch work or full respray?

• Choose patch work if the damage is limited to a few areas and the rest of your paint is in good condition.
• Choose a full respray if the paint is faded, peeling or damaged all over, or if you want a new colour.

Not sure? Send us photos and we’ll tell you honestly which option makes sense.

How we do a respray at our workshop

Every Singapore car spray paint job at our Bukit Merah and Kaki Bukit workshops follows the same careful process:

1. Inspect the car under strong light and agree the scope with you.
2. Wash and degrease to remove wax, silicone and road grime.
3. Remove or mask lights, trim and badges for crisp, clean edges.
4. Repair and sand: straighten dents, treat scratches and sand the surface so new paint bonds properly.
5. Prime repaired areas and block-sand them smooth.
6. Colour match using your paint code, adjusted to your car’s actual colour.
7. Spray the base coat and clear coat in our dust-controlled spray booth.
8. Bake to cure the paint into a hard, durable finish.
9. Polish, reassemble and inspect every panel before handover.

Read the full step-by-step guide: how we respray a car.

How much does patch work cost?

Scratch and dent repair starts from $300, bumper repair and spray from $250, and touch-ups from $200. The final price depends on the size of the damage and how many panels need blending. See our car respray cost guide and our guide to scratch and dent repair.

Get a free quote for your repair

WhatsApp us a clear photo of the damage for a free, no-obligation quote, or request a quote here.