Accessory Drive Belt Guide for the 1981-1983 Renault R18
Keep your classic Renault running smoothly by understanding its accessory drive belts.
- Your R18 uses multiple V-belts; confirm which one you need as the A/C, power steering, and alternator/water pump belts are different sizes.
- Squealing noises and visible cracks are the primary warning signs that a belt needs replacement.
- OEM parts are unavailable; choose a quality aftermarket brand like Gates or Dayco for reliable performance.
- Do not drive if the belt that runs the water pump or alternator breaks, as it can lead to engine overheating or leave you stranded.
Signs of a Failing Accessory Drive Belt
A worn or failing accessory drive belt will usually provide warning signs. One of the most common symptoms is a loud squealing noise, especially when you first start the engine or during acceleration. You should also perform a visual inspection of the belts. Look for cracks, fraying, glazing, or any visible damage on the belt's surface. If a belt breaks completely, you will experience an immediate loss of function for the components it drives. This could mean a loss of power steering, the battery warning light coming on (from a non-working alternator), or the engine temperature rising quickly (from a non-working water pump).
Pulley and Tensioner Health
Sometimes, a belt that repeatedly fails or comes off isn't the belt's fault. The problem can be with a misaligned pulley, a worn-out bearing in a pulley, or a bad tensioner. If you replace a belt and the problems continue, have a mechanic inspect the entire belt drive system.
Choosing the Right Aftermarket Belt
For a classic vehicle like the Renault R18, original equipment manufacturer (OEM) parts are virtually nonexistent. Fortunately, reputable aftermarket brands like Dayco and Gates have been making quality belts for decades. Both brands produce belts made from modern EPDM rubber, which is more durable and resistant to heat and ozone than older neoprene belts.
- Gates: Gates is a well-regarded brand and a known OEM supplier to many car manufacturers. They produce high-capacity, notched V-belts specifically for the 1981-1983 Renault R18 to drive accessories like the alternator, water pump, power steering, and A/C.
- Dayco: Dayco is another major player, also supplying belts directly to car makers. They emphasize that modern EPDM belts from major suppliers offer very similar durability and performance. Dayco also offers belts for the R18.
Ultimately, choosing between Gates and Dayco often comes down to personal preference and past experiences, as both are considered quality choices. The most critical factor is ensuring you purchase the correct belt for the specific accessory it drives (e.g., the A/C belt may be a different size than the alternator belt).
Check the Part Number
Always verify that the belt's part number and length are correct for your specific vehicle and the accessory it drives. Part catalogs list different belts for the water pump/alternator, power steering, and air conditioning. Using the wrong belt can lead to poor performance or damage.
Accessory Drive Belt Cost for 1981-1983 Renault R18
| Part Type | Price Range |
|---|---|
| New Aftermarket Belts (Dayco, Gates) | $22.92 - $37.45 |
| Shop Labor for Replacement | $100 - $250 |
Note: Prices are estimates and may vary based on your location and the specific repair shop. Labor costs can vary depending on which belts are being replaced.
Frequently Asked Questions
How many accessory belts does my Renault R18 have?
Most Renaults of this era have one or two drive belts. Your 1981-1983 R18 likely has separate V-belts for different accessories. For example, there is one belt for the water pump and alternator, and separate belts for the power steering and air conditioning if your car is equipped with them.
Can I drive with a broken accessory belt? 🎬 Watch this video to understand the risks of driving with a broken belt.
It is not recommended. If the belt that broke runs the water pump, your engine will overheat very quickly, which can cause severe damage. If it runs the alternator, your car will run only until the battery is dead. Driving without a functioning power steering belt will make the car very difficult to steer.
Are there any recalls for the Renault R18 accessory drive belt?
No, there are no specific recalls for the accessory drive belts on the 1981-1983 Renault R18 according to NHTSA data. Safety recalls for vehicles this old are rare.
Is replacing the drive belts a difficult job?
For a mechanically inclined owner with the right tools, replacing V-belts on an older car like the R18 is usually a straightforward job. It involves loosening the tension on the belt, removing the old one, routing the new one, and applying the correct tension. However, if you are not comfortable working on your vehicle, it's best to leave it to a professional.
Helpful Videos
Technical Specifications
The 1981-1983 Renault R18 with the 1.6L gas engine uses multiple V-belts. The water pump and alternator belt is approximately 40.5 inches long. The air conditioning belt is approximately 42 inches long. Belts are typically notched and made of EPDM rubber.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Renault R18: