* Power Steering Fluid: This is a common cause. Power steering fluid is typically reddish in color. A leak would often be near the power steering pump or hoses. Look for a leak near the steering rack, pump or hoses in that area.
* Transmission Fluid (Automatic Transmission): While less likely to be on the *driver's* side specifically, it's possible, especially if there's a leak from a seal near the transmission itself or a transmission line. Automatic transmission fluid is usually red or reddish-brown.
* Brake Fluid: Less likely in this location, but brake fluid is also reddish. A brake fluid leak would usually be near the brake caliper, brake lines, or master cylinder (which is typically under the hood). A leak from this system is a serious safety concern and requires immediate attention.
To determine which fluid it is:
1. Observe the leak: Where exactly is it coming from? A picture would be helpful.
2. Check the fluid levels: Check your power steering fluid reservoir (usually a clear or translucent tank near the engine), your brake fluid reservoir (usually under the hood), and your automatic transmission fluid level (requires checking with the engine running and in park – consult your owner's manual). Look for low levels and a corresponding loss of fluid.
3. Smell the fluid: Power steering fluid has a distinct smell. Brake fluid has a slightly sweet odor. Transmission fluid can have a slightly burnt odor if it's old.
4. Use a clean rag or paper towel to absorb some of the fluid: The color will give a better indication.
Important Note: A leaking fluid is a potential safety hazard and should be addressed promptly by a qualified mechanic. Driving with low power steering fluid, brake fluid, or transmission fluid can lead to serious problems and even accidents. Don't delay getting it checked out.
