I’ve used JB4 on my VW Golf R with good results so I decided to get one for my 2015 E400 (37,000km).
I installed the JB4 without a hiccup but the BMS intakes were tricky as the supplied heat shields didn’t fit in the locations as per instructions. Maybe because it’s an Australian model there are some variables, the bolts on the sides of the engine back were about an inch out on one side and the left had a bracket holding a battery cable, but after a little modifying they will work but not a perfect fit.
In Australia we have pump 98 Octane fuel so I’m starting on Map 2 and will work up to Map 5 once I install the OBD cable and can send logs to be safe.. I ran out of time as I spent 4 hours fitting the heat shields.
Map 2 runs there is a clear increase in performance and appears to drive like OEM, as it didn’t with my 2016 VW Golf R.
The E400 is a luxury performance car, at 245kw 480nm standard it’s feels heavy under acceleration, but with he JB4 on Map 2 has already made it feel much lighter and I assume that’s due to the power increase.
My questions to TERRY @ BMS:
Does anyone have any peak numbers for reference with regards to performance gain?
What are the differences between E400 and C43 engines specs
Is 98 Octane Fuel high enough for map 4/5
The cable not used on this application on the JB4, what is that for and where would I plug it if I wanted to use it?
(LOG)
WOT in 2nd gear went sideways and I **** myself! Then into 3rd clean...
Thanks
Cheers
Adam
Last edited by cuttaE400; 02-16-2021 at 03:28 PM..
I'm running map 4 on 93 octane here in the states on my 2015 E400 with no other mods or issues, and have been doing so for well over a year. In the past I've tried map 5, but that might have been before BMS adjusted it.
Yours must be RWD if you've gotten sideways. Mine is AWD so it's pretty drama free.
Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!
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