35 seconds with an ALDA, and 13 seconds without, means the signal line to the ALDA was blocked. And also that the pump is WAY the heck out of spec.
On my white 1987 300D, with the ALDA installed but disconnected (no signal line), it went 0-60 in 14 seconds. With the ALDA line connected, it dropped to about 10.5 seconds. That's 3-4 seconds loss, not 20+....!!!
