When you hear "BobIsTheOilGuy MAS suspension parts," you're likely referring to the discussions on the popular automotive forum where members share real-world experiences with Mass Air Suspension (MAS) components. The forum, known for its no-nonsense approach to car maintenance, is a go-to resource for DIYers looking to upgrade or replace their suspension. This guide walks through the key suspension parts discussed there, how to choose them, and what the community recommends.
Understanding MAS Suspension Parts
MAS suspension parts typically refer to components from Mass Air Suspension, a brand that specializes in aftermarket air suspension systems. However, the forum also uses "MAS" loosely for any mass-produced air suspension parts. Common items include air springs, compressors, height sensors, and valve blocks. These parts are crucial for vehicles with factory air suspension or those converting to air ride.
Common Parts in Air Suspension Systems
- Air Springs (Air Bags): Replace coil springs. They provide adjustable ride height and improved comfort.
- Air Compressors: Pump air into the system. The forum often discusses compressor longevity and replacement.
- Height Sensors: Monitor ride height; faulty sensors cause uneven stance.
- Valve Blocks: Control air distribution between springs.
- Dampers (Shocks): Work with air springs to control motion.
Why BobIsTheOilGuy Is a Resource for Suspension Parts
The forum's strength lies in its user base – experienced mechanics and hobbyists who share detailed installation tips and troubleshooting. Unlike other forums, BobIsTheOilGuy tends to focus on practical, cost-effective solutions. When you search "mas suspension parts" there, you'll find threads comparing OEM vs. aftermarket, discussing common failure points, and recommending specific brands.
Choosing the Right MAS Suspension Parts
Identify Your Vehicle's Requirements
First, determine if your vehicle uses a proprietary air suspension system (like Land Rover, Mercedes, or Lincoln) or a universal aftermarket kit. The forum has dedicated subforums for different makes. For example, older Ford Expeditions often need replacement air springs, while newer Audi models might require sensor rebuilds.
Prioritize Quality Over Price
While budget parts are tempting, the community warns against cheap compressors and bags that fail quickly. Look for components with a good warranty – many members recommend MAS brand directly, or OEM suppliers like Arnott or Suncore. Check the forum's "part numbers" sticky threads for cross-referencing.
Match Components for Reliability
If you replace only one air spring, the other may fail soon due to uneven load. It's better to replace in pairs or full kits. The forum says: "Do both front or both rear at the same time to avoid future headaches."
Installation Tips from the Community
Tools and Prep
- Have a jack and jack stands ready.
- Use nylon lock nuts for adjustable links.
- Clean airline fittings with alcohol to prevent leaks.
Common Pitfalls
- Pinched O-rings: Lubricate when installing connections.
- Misadjusted Height Sensors: Cause "bouncing" or "bottoming out." Use a level surface and follow the sensor's installation PDF.
- Electrical Draw: A failing compressor can drain your battery. The forum suggests upgrading to a sealed compressor or adding a thermal fuse.
When to Replace vs. Repair
Sometimes a simple cleaning or reseal can fix a leaky valve block. But for air springs with cracks, replacement is necessary. The forum's consensus: If the system is over 10 years old, consider a full rebuild because compressors often die soon after springs.
Aftermarket vs. OEM MAS Parts
Many forum members prefer aftermarket for price, but OEM for fitment. For example, aftermarket height sensors often require manual calibration, while OEM plug-and-play. If you have a luxury car, OEM sensors may be worth the extra cost. For everything else, a quality aftermarket brand like MAS or Dorman can save money.
Practical Buying Guidance
- Check forum vendor threads: Some members sell parts direct with better pricing.
- Avoid Amazon-sold generic bags: They lack engineering support.
- Look for updated designs: Newer compressors have better moisture traps.
Final Recommendation
For most DIYers, the best approach is to browse BobIsTheOilGuy's suspension section for your specific vehicle. Look for threads with high post counts and photos. Buy a name-brand kit from a trusted supplier – not the cheapest option. Invest in a good multimeter to test sensors and relays. And always post your results back to the forum; it helps the next person. If you're uncomfortable with electrical work, have a shop handle the compressor wiring but do the mechanical parts yourself. Remember, air suspension adds complexity, but with proper parts from the community's recommendations, it can be reliable.