RADHLBNIU Ignition Lock Cylinder for VW Jetta Golf 2004-2011 — Direct-Fit Replacement, Mechanical Only

RADHLBNIU Ignition Switch Lock Cylinder is a direct-fit replacement for many VW, Audi, Seat and Skoda models when the key won’t turn or the cylinder feels loose. If your vehicle hesitates to start because the key spins farther than it used to or won’t rotate smoothly, a worn ignition lock cylinder is a common culprit. This replacement unit fits a broad range of Volkswagen Group vehicles from the mid-2000s to the early 2010s and is built from durable materials for long service life. It does not include an immobilizer transponder chip, so it replaces the mechanical locking mechanism rather than the electronic key components.

Which vehicles does this ignition lock cylinder fit?

The RADHLBNIU cylinder is designed to match original equipment dimensions for many VW Group models, making it a straightforward swap for owners and technicians. Confirm fitment against your vehicle’s year and part numbers before ordering.

• Volkswagen: Jetta (2005–2011), Golf (2004–2011), EOS (2006–2011), Tiguan (2008–2011), Rabbit (2006–2009), Scirocco (2009–2012), Touran (2003–2010), Caddy (2004–2011)
• Audi: A3 (2003–2013), TT (2007–2010), R8 (2007–2013)
• Seat: Leon (2006–2010), Altea (2004–2013), Toledo (2005–2009)
• Skoda: Octavia (2004–2013), Superb (2008–2015)

How does this replacement solve starting or key-turn problems?

When the internal tumbler or housing wears, the key may rotate too far, stick, or refuse to turn—symptoms that interfere with ignition and starting. Replacing the lock cylinder restores the correct mechanical engagement between key and switch, often eliminating the need to replace the entire ignition switch assembly.

• Restores proper key rotation and detent positions for START/ON/OFF
• Eliminates play or sticking caused by worn tumblers or housing
• Saves cost versus replacing the full ignition switch in many cases

Does this unit include an immobilizer chip or key blade?

This product provides the mechanical lock cylinder only and does not include a transponder chip or programmed key. You can install it with your existing key blade if it matches; electronic immobilizer reprogramming may be required if a new chipped key is used.

• No internal transponder chip included
• Use existing vehicle key blade if compatible
• Professional key programming necessary if adding a chipped key

What quality and part references should I expect from this replacement?

Manufactured from robust materials to resist wear, the RADHLBNIU cylinder is intended as a direct-fit replacement that corresponds to several OEM part numbers. Check cross-reference numbers to ensure compatibility with your vehicle’s original part.

• Built from durable metals and precision components for longevity
• Compatible with common OEM numbers such as 5Q0905865A, 1K0905851B and related references
• Supplies the mechanical lock cylinder as a like-for-like swap

Who is this for This ignition lock cylinder suits DIY mechanics, independent repair shops and vehicle owners who need a direct mechanical replacement for worn or failing ignition locks on mid‑2000s to early‑2010s VW Group cars. It’s ideal if your key turns improperly but your immobilizer and electronic systems are otherwise intact, or if you plan to reuse or separately program an existing transponder key.

FAQ

Q: Will this cylinder work with my existing key?

A: If your key blade matches the cylinder, you can reuse it; this unit does not include an immobilizer chip.

Q: Do I need to program my car after installing?

A: No programming is needed if you keep and use the original transponder key; new chipped keys require professional programming.