Clicking, creaking or squeaking noises while driving from the stabiliser and coupling

Possible cause: Debris or grime between the towball and friction pad, a dry (unlubricated) draw-shaft inside the overrun device, or excess play in a detachable towball's locking mechanism.. Rub the towball and friction pads clean using fine (100-120 grit) emery paper. Grease the draw-shaft sleeve through its nipples, sliding the gaiter forward first, using DIN 51 825 KTA 3K grease on the exposed shaft. A specialist workshop should then inspect the ball-holding area for damage and confirm the locking mechanism works properly, replacing the towball if needed.

AL-KO ATC LED does not turn green or flashing green during self-test / upon connection

Possible cause: ATC is not functioning correctly or is not properly connected.. Check that the 13-pin plug is properly connected at the towing vehicle's tow-bar. AL-KO or your supplying Bailey retailer can help if the LED still won't turn green.

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Bailey • Chassis & AL-KO Running Gear

Covers: Alicanto Grande Deluxe, Discovery, Pegasus Grande Black Edition

+2 more

Phoenix Black Edition, Unicorn Deluxe

Unicorn Deluxe models: Cabrera, Cadiz, Madrid, Pamplona, Seville, Vigo

Alicanto Grande Deluxe models: Alvor, Evora, Porto, Sintra

Phoenix Black Edition models: 420, 440, 640, 642, 644

Pegasus Grande Black Edition models: Amalfi, Bologna, Brindisi, Messina, Portofino

Discovery models: D4-2, D4-4L, D4-4

Bailey AL-KO AKS Stabiliser, Chassis & Braking System

(2026 Model Year)

Sourced from Bailey's 2026 model year owner's manual. If your caravan is a different age or range, some details — such as the exact control panel brand or chassis-component generation actually fitted — may not match. Always cross-check against the handbook that came with your specific caravan.

View official manual on manufacturer's site ↗

Also Fitted To This Caravan

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Possible Cause	Step-by-Step DIY Fix	Suggested Actions
`N/A`	Clicking, creaking or squeaking noises while driving from the stabiliser and coupling	Debris or grime between the towball and friction pad, a dry (unlubricated) draw-shaft inside the overrun device, or excess play in a detachable towball's locking mechanism.	Rub the towball and friction pads clean using fine (100-120 grit) emery paper. Grease the draw-shaft sleeve through its nipples, sliding the gaiter forward first, using DIN 51 825 KTA 3K grease on the exposed shaft. A specialist workshop should then inspect the ball-holding area for damage and confirm the locking mechanism works properly, replacing the towball if needed.	DIY Check / Tech Fallback
`N/A`	AL-KO ATC LED does not turn green or flashing green during self-test / upon connection	ATC is not functioning correctly or is not properly connected.	Check that the 13-pin plug is properly connected at the towing vehicle's tow-bar. AL-KO or your supplying Bailey retailer can help if the LED still won't turn green.	DIY Check / Tech Fallback