[spyskys]

Thanks everyone for all the useful beta on this repair. Took the time on Friday to change out the bleed line. It really is an ingenious workaround. Seemed pretty straightforward with the most challenging part being tightening the hoses once in position. Noticed some slight emulsion build up in the hose, did not open the diaphragm flap to see how bad the rest is. Drove the van about 4-5 cycles yesterday with CEL still on. On first start up this AM, CEL is GONE!!! I grimace to think I might have to repeat this in 40-50k time as I am just at 40k when P052E code went out. Wonder how the USPS is addressing this with all the vans they recently bought. Must admit, this is very frustrating as our 2007 Honda Element has spoiled us on low cost to maintain. Perhaps this is the price of admission for having a Metris. Now to get an oil change in the coming week or so. Upward and onward….for now. Thanks again to this community!

 

[spyskys]

@Gregor. Thanks so much for beta! Oem bleed line just arrived. Gonna get that bent pick you recommend and proceed with caution next week.

 

[spyskys]

About to jump into this mod. Only 39K on our 2018. Did you guys insist on OEM Mercedes bleed line or will aftermarket suffice here?