Aw man thx tjts! I did this job earlier in the year on my e420 But I guess since this car is a 2001 the regulator will be the the newer one? Right? If it is no worries thx to your diy link. You saved the day! I am knee deep in cleaning this car today. Prev owner was a coal miner . Lol.

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Current stable......
17' Rogue SV 70k
11’ Saab 9-5 NG 94k
10’ e550 4matic 185k

sold
02' e320 210k
00' e430 167k
01' e320 171k (regret sale)
91' 300d 2.5t 300k (sold to ecoofidaho)
79' 240d 177k (old yellow my avatar)
87' 300d 169k (junk but fast)
85' 300tdt 261k (RBM parts delivery)
85' 300dt 68k (one owner cream puff)
82' 240d 250k
84' 300dt 198k (sold to diesel don)
91' 190e 2.3 61k
88' 260e 140k