Quattro Squad

Did you know we also have this?

Red Audi car parked with the hood open, showing the engine, surrounded by trees and grass.

It’s an 85 UR Quattro. We may add the historic post from our previous site here too but for now here’s its latest shenanigans.

Hi all. we know, it’s been a minute. A lot of minutes. But that doesn’t mean nothing’s been happening with and too the car. Quite the contrary. The car was running great for a while there back in fall of 2024 but it still had its on boost hesitation thing going on. Then, just mildly into the boost leaving a light it died and rolled to halt, luckily into a parking lot. Tow truck time. Back to the showroom.

A red Audi car being loaded onto a flatbed truck in a parking lot, with trees and buildings in the background.

We parked it till June 2025 when we decided to smoke test it.

A red Audi car with its hood open, showing the engine compartment, next to a device with red hoses connected to it, placed on a gray mat. Yellow and black caution tape outlines the area.

Were we found the boost pipe had split. Fortunately we had a spare from our 83 as that is getting an AAN swap.

Two automotive intercooler hoses displayed on a work surface. The upper hose is black and smooth, while the lower hose is labeled 'lower intercooler hose' and has a slightly worn appearance.

But we didn’t neglects the car in the interim. In fact, we made a lot of improvements. Like getting the passenger seat repaired.

Close-up of a damaged black leather chair armrest showing a tear and worn surface.
Close-up of a black leather car seat with visible wear and stitching details.

and doing a compression test

A notepad page with handwritten notes titled 'COMPTEST', listing scores for five entries: 1 - 140, 2 - 150, 3 - 150, 4 - 145, 5 - 140.

Then we drained the tank to clean out any debris, replaced the fuel filters and tested the fuel sender as we didn’t trust it anymore. It was fine. The motivation for doing this was because we decided to rebuild the fuel distributor in the hope that it might fix our boost hesitation and also because, well, it’s 40 odd years old. It can’t be pristine still.

An overhead view of a mechanical work surface featuring two disassembled engine components: a pump and a housing unit, surrounded by washers and tools.
A red car with its hood open, revealing the engine bay. In the foreground, a workbench holds various items including a box of sonic cleaner, bottles of cleaning solutions, a gallon of water, a manual, and a disassembled auto part.
A metal automotive part submerged in yellow cleaning solution inside an ultrasonic cleaner, with a digital timer display showing 00:00.
Close-up view of a mechanical component with a cylindrical part situated in the center of a circular base with several openings, likely part of an engine assembly.
An image showing a disassembled engine component, featuring a metallic hexagonal piece on the left and a valve head with multiple openings on the right. Surrounding the components are small rubber O-rings, some tools, and a black marker.
Top view of a mechanical component with multiple hexagonal bolts and fittings, likely a fuel injection pump or similar device, placed on a gray surface.
Close-up of a red car's engine bay, showing various components including a turbocharger, hoses, and a pressure gauge attached to the hood.
A red car with its hood open is parked in a garage, revealing its engine. In the background, a gray car is displayed, equipped with multiple spotlights. The garage features tools, equipment, and a workspace.
Close-up view of a car engine component showing a metallic part labeled 'NO VACUUM ATTACHED W.U.R.' with a finger pointing at it.
Two car air filters are placed in a storage bin. The top filter has an orange frame, while the bottom filter has a black frame. Various automotive parts are visible in the background.

The car runs a lot better now, starts and idles much more smoothly but we still haven’t cured out hesitation on boost. Regardless, we spent the rest of the season enjoying and sharing the car.

Information plaque for a 1985 Audi Quattro Coupe displayed at the Northville Concours d'Elegance. It highlights the car's significance in automotive history, its 131 cubic inch inline 5-cylinder engine, and details about its power and rarity.
A side view of a classic red sports car parked on grass, showcasing its sleek design and wheels, with another car visible in the background.
Aerial view of four classic cars parked on green grass, including a white sports car in the foreground, a red coupe in the middle, a black convertible behind it, and a red roadster on the right, with a person inspecting one of the vehicles.
A classic red Audi sports car parked on a pavement with people standing nearby at a car event.
A group of people gathered around a red Audi, engaging in conversation at an automotive meet. Some individuals hold coffee cups, while classic cars and trucks are visible in the background.
A red Audi sports car parked alongside a classic red Chevrolet Corvette in a parking lot, with a restaurant in the background.

What’s next for the car? Well, we’ve decided to put it up for sale! Will need a little prep and some minor fixes and we need to track down that bloody hesitation too.

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