Catalytic converters are essential for reducing harmful emissions, but over time they can become clogged with soot, ash and carbon deposits. This leads to reduced engine performance, increased fuel consumption and higher emissions. Enter BAC 101, the ultimate DPF and catalyst cleaning system. Respected across the UK, BAC 101 offers a powerful, professional-grade solution, now easy to use right from your own garage.
🔧 What Is BAC 101?
BAC 101 is a chemical cleaning system designed for both DPFs and catalytic converters. It effectively dissolves stubborn soot and ash without the need for filter removal. The core components are CAT “A” and CAT “C” cleaning solutions, available in various refill packs, from single-dose to industrial sizes, offering exceptional value and flexibility.
🌱 Why Clean Catalysts & DPFs?
Your vehicle’s catalyst and DPF trap pollutants to reduce emissions. Over time, ash accumulation restricts exhaust flow, triggering warning lights, diminishing performance and lowering fuel economy. At worst, back pressure can lead to engine damage or failed emissions testing. BAC 101 tackles these issues head-on by restoring optimal filter function, boosting efficiency, saving fuel and extending component life.
🧼 Cleaning Methods
BAC 101 supports two effective cleaning approaches:
1. In‑Tank Additive
Add the BAC 101 solution directly to the fuel tank. As the engine runs, the cleaner travels through the system, working on soot and ash. This passive cleaning method gradually restores efficiency and reduces the need for intensive servicing later.
2. Off‑Car (Dip/Flush) Cleaning
For deep cleans, or when in‑tank methods aren’t enough, this approach is ideal:
- Remove the catalyst or DPF.
- Fill a tank or use a flow bench.
- Soak the part in BAC 101 solution using the included pump.
- Flush with a neutralising agent.
- Dry thoroughly, then reinstall.
This method achieves near-total cleaning in under 45 minutes and is especially effective for heavily clogged parts










