Bosch Spark Plug

Bosch · Part number WR7LTC · NZ$19.00 incl. GST

For your classic European ride, like a 90s VW Golf, Passat, or Audi 80/100, these Spark Plugs are the absolute heart of your ignition system, delivering that crucial spark for a proper bang, and trust me, if they're a bit knackered, you'll feel it with misfires, rough idling, and your wallet taking a hit at the pump. This BOSCH option is top-shelf, OE-quality stuff, just like the other premium brands we stock, so you know you're getting the real deal.

Price

NZ$19.00 including GST. Part number WR7LTC.

Fits these vehicles

• Audi 100 (1990–1992)
• Audi 100 (1990–1992)
• Audi 100 (1990–1994)
• Audi 100 (1990–1994)
• Audi 100 (1990–1994)
• Audi 100 (1990–1994)
• Audi 100 (1990–1994)
• Audi 100 (1991–1994)
• Audi 100 (1991–1994)
• Audi 100 (1992–1994)
• Audi 100 (1992–1994)
• Audi 80 (1986+)
• Audi 80 (1988–1990)
• Audi 80 (1988–1990)
• Audi 80 (1991–1994)
• Audi 80 (1991–1994)
• Audi Cabriolet (1993–1998)
• SEAT Cordoba (1993–1999)
• SEAT Cordoba (1993–2002)
• SEAT Cordoba (1993–2002)
• SEAT Ibiza (1993–1999)
• SEAT Toledo (1991–1999)
• Volkswagen Golf (1983–1993)
• Volkswagen Golf (1991–1997)
• Volkswagen Golf (1991–1997)
• Volkswagen Golf (1991–1997)
• Volkswagen Golf (1992–1997)
• Volkswagen Golf (1993–1998)
• Volkswagen Golf (1993–1998)
• Volkswagen Golf (1993–1999)
• Volkswagen Golf (1995–2002)
• Volkswagen Golf (1996–1998)
• Volkswagen Golf (1998–2002)
• Volkswagen Polo (1994–1996)
• Volkswagen Polo (1994–1997)
• Volkswagen Polo (1994–1999)
• Volkswagen Polo (1995–1999)
• Volkswagen Polo (1995–1999)
• Volkswagen Polo (1996–1999)
• Volkswagen Polo (1999–2001)

Description

Give Your Classic Euro a Kick-Start: Spark Plug TLC with BOSCH!
> Right, so your spark plugs are the unsung heroes, delivering that electrifying jolt to fire up your engine's fuel-air mix. Over time, that tiny spark gets a bit tired, thanks to electrode wear and carbon build-up, leading to misfires and a generally grumpy engine. For those iconic 1990s European legends like your VW Golf, Passat, Polo, Audi 80/100, or SEAT Cordoba – cars built with German precision for snappy performance – keeping those spark plugs tip-top isn't just a good idea, it's essential for that smooth, responsive drive you love.

Symptoms That Led You Here
• Engine misfires or stuttering under acceleration
• Rough or lumpy idle, especially when cold
• Noticeably increased fuel consumption
• Difficulty starting, particularly in damp NZ winter mornings
• Check engine light illuminated (often P0300-P0304 misfire codes)
• Loss of power climbing hills or during overtaking

Will it pass WOF?
Spark plugs themselves aren't a direct WOF inspection item, but the symptoms of worn plugs—excessive exhaust emissions and engine running faults—can cause a WOF failure. NZ testing includes visual exhaust smoke assessment, and misfiring engines produce elevated hydrocarbons that may fail emissions checks on post-2006 vehicles or trigger obvious smoke on older models.

DIY or Workshop?
Difficulty: 4/10 | Time: 30-60 minutes | Tools: Spark plug socket (16mm typical for VAG), ratchet, extension bar, torque wrench, feeler gauge (if gap adjustment needed), dielectric grease

On these 1990s VAG four-cylinder engines, spark plugs are generally accessible once you remove the ignition lead covers. The inline-four layout in the Golf, Passat, and Audi 80 provides decent clearance. However, ensure the engine is cold to prevent thread damage in the aluminium head, and always torque to specification (typically 20-30 Nm) to avoid stripping.

Expert Recommendation
BOSCH has been the OE supplier for Volkswagen and Audi since these vehicles rolled off the Wolfsburg line, making this spark plug an exact-match replacement that maintains factory ignition characteristics. For these classic European daily drivers—still popular on NZ roads for their reliability and parts availability—correct spark plug specification ensures the fuel injection and ignition mapping work as the German engineers intended.

We recommend replacing all four plugs simultaneously and inspecting ignition leads for cracking or corrosion while you're in there.

Bob @ CARFIX is always on hand to help you work out exactly what spark plug you need for your VW or Audi. Make sure you head over to Bob's Shop for a chat!

Fitment Notes
• Confirmed fitment for VW Golf Mk3/Mk4 (1993-2002), Passat B3/B4 (1990-1996), Polo 6N (1994-2001), Vento (1991-1998)
• Suits Audi 80 B4 and Audi 100 C4 with 2.0L petrol engines (1990-1994)
• Also fits SEAT Cordoba 1.6/2.0 petrol variants (1993-1999)
• Always verify engine code (e.g., 2E, ABF, AAM) as VAG used multiple engine variants across these platforms
• Some models may require specific electrode gap—check workshop manual or ask Bob

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🛠️ Bob's Pro Tip: Do the Job Right!
> If you're replacing this spark plug, make sure you've got the right workshop prep, protection, and safety gear ready. Taking a bit of extra time and using the proper safety stands and cleaners makes all the difference for a professional result!

🧰 What Else You'll Need:
• Safety First: Always secure your vehicle on heavy-duty safety jack stands before working underneath. Never rely solely on a hydraulic jack.
• Clean Hands: Keep a pack of Nitrile Gloves handy to protect your skin from grease, oils, and chemical sprays.
• Preparation: Have microfibre towels and a suitable parts cleaner nearby to keep components clean during installation.