Question: Too bad this didn't fix my problem. The car stalls while turning right. I'm working my way through the fuel system. I started with the fuel filter as it was only $12. The relay was around $40. Next is either the accumulator or the two fuel pumps. If anybody has any suggestions for which would be best to tackle next, please chime in. I am leaning towards the accumulator as that's one part (and I think cheaper than the two fuel pumps combined).

I found this forum via The Google and thought I'd add some more pictures...and I description of how I was able to swap out the fuel pump relay.

For my '87 560SL I emptied the glove box and found a ~5-inch diagonal access panel I could remove. This gave me access to see the area where the relay is located. Since I went the same route as another poster and removed the panels below the glove box already, I pulled the HVAC conduit out as well, which gave me tons of room to access the relay. I did not have to take the glove "box" out. The total job took me under 30 minutes if you don't include the time to contort my body into the footwell. (I think it took another 30 minutes to extract myself and then straighten my back again. ;-)

With one hand through the access panel I was able to reach the idle speed relay first. By reaching up from below with my other hand, I could gain better leverage in order to pull the idle speed relay and then the fuel pump relay out.

Make sure to remember the orientation of both in order to more easily reinsert them.

Glove Box Access Panel (X marks the spot)

Here's a link to the image: Glove Box Access Panel

Conduit I Removed:


The Relay I Remove (yes, it had tape on it!):