정기점검PistonHeads★ 신뢰도 4.1 (높음)

아우디 A4 수리 사례

2003년식 · B6 (2001-2004) · 2.0

2026. 8. 31. 작업

난이도 & 준비물

증상

This is a thread about my first car which I've owned since 2003, it started life as a 1.3 8v Polo GT, all 75bhp and 800kg. Chapter 1 - The Early YearsI don t have many photos of my car standard, partly because it didn t spend much of its life in this state. However, there was a brief period I was content with cleaning it, polishing it and adding a few shiny dress parts. It looked like this:If ever there was a car that didn't have a clue what the next 23 years held for it... Shortly after passing my test, I bought a Wizards of Nos nitrous kit, and jetted it for about 80bhp and made my way down

처리 내용

Chapter 2 – Polo GT1I glossed over making the larger VW/Audi gearbox fit a small block VW, the Polo came with an 085 Transmission, 085 Transmissions have a reputation of being weak especially in higher powered boosted applications. Not surprising given the 084 is was based on had to handle 895cc of power and a lightweight Mk1. Add a little weight, and lots more power (about 4 or 5 times the amount of the Mk1) and it’s not surprising a 230bhp G40 will strip gears for fun.So far my 085 failures had been:• Inner CV Joint• 2nd Gear• 3rd Gear• 5th Gear• Diff/Final Drive BoltsTime for a change...Now a huge amount of work went into grafting an 02J from a Golf, onto a Polo engine.Summary of work done:- Bespoke Adapter plate- Bespoke driveshafts- Modified CV joints- Modified Wheel Hubs- Large amount of fabrication on the NSF and OSF chassis legs- Bespoke crank pulley- Bespoke alternator bracketry- Fabricated engine mounts- Bespoke gearshift cablesYada yada – I spent a year getting it to work, and it did indeed work!The Polo was then my wedding car, alongside some other family member’s motors:I did a few trackdays (with no gearbox failures!) and decided it was time to refresh the shell after a decade of me cutting, grinding and modifying it. A little bit of steel and a welder later:It’s mounted on a spit and ready for some work. A ‘refresh the chassis’ turned into:- Fit a 1.8T 20v (aim was circa 500bhp)- Fit a Tilton Pedal Box- Fit an ATL fuel cell- Make a flat-floor- Convert to EPAS - Additional roll cage tubes- Sill stands - Stitch weld chassis - Repair any rust along the way So it starts with removing underseal from the floor, all in a single integral garage, I was popular for a few years! After many hours of grinding I could make a plan for repair sections:For all the redundant holes I had some sheet laser cut to save time:And welded them into various places:Stitch welding the entire chassis was also on the to-do list:Next up some sill-stands with receivers integrated int