I have owned several ZHPs (convertibles and sedans, 6-speeds and Steps) and one E93 335is with the DCT. The 335is is a special car, much like the ZHP found a perfect spot in between the regular 330 and M3. My absolute favorite trait of the 335is: the exhaust note under acceleration is sublime! Even my wife - who generally has no appreciation for cars - would complain if I did not have the top down AND the accelerator down when we traveled under long overpasses or through tunnels or beside highway retaining walls, where the exhaust sound bounces back at you.
A warning: if you buy a 335is and then sell it, you will always be looking to pick up another one. Just like I have done with the ZHP!
how's the reliability on these? did they have the same HPFP issues as earlier N54 cars?
--Wes--
04 330i ZHP Oxford Green/Natural Brown
04 330Ci ZHP Silvergrey/Alcantara (RIP)
335is is a N54 engine so some risk exists for issues with HPFP, turbos, and the periodic intake manifold cleaning. The HPFP on our 335is crapped out 3-4 days after we bought it. Called my dealer and BMW NA even though the car was definitely out of warranty. BMW NA provided the HPFP for free, my dealer spilt the labor charge with me, a $1500 repair only cost me $500-ish. And I didn’t buy this car from the dealer, I had bought it from a fellow enthusiast. That was great customer service.
Last edited by BCS_ZHP; 07-11-2018 at 08:42 AM. Reason: Added a clarifier
Bruce
21 GMC Sierra - mine
16 X5 M-Sport - wife
11 M3 - 1st son
04 Tundra - 2nd son
17 X1 M-Sport - daughter
Former (mo/yr sold):
15 335xi M-Sport (8/18)
11 335is (8/17)
11 X5 AW/blk (11/15)
04 330xi blk/gray (7/15)
06 ZHP SGM/blk (6/15)
08 335xi blue/blk (4/15)
04 ZHPci MB/blk (2/14)
04 ZHPcic IR/Alc (10/13)
01 540iT anthra/blk (7/13)
04 ZHPci TIAG/blk (9/12)
03 540i M-Sport (9/12)
01 325ci (3/12)
02 325iT 5MT (10/11)
05 ZHPci (7/11)
03 330cic (2/11)
00 323ci (10/10)
Most likely, HPFP failures have already occurred on the older cars. Other issues with the n54 are waste gate rattle on the turbos, failing injectors and the common BMW gasket failure. The electric water pump is a $1500 replacement at the dealership but I've done that in the 135 and it was just as easy as replacing say, an alternator or power steering pump. It's just another accessory hanging off the engine.
As far as walnut blasting, yes this is periodic maintenance on this engine as well as any engine with direct injection although you hear about it more on the n54 for some reason...
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
H&R sport springs, UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers
BP, I think the HPFP warranty is 10 years, but the wording states it only covers thru model year 2010, so in essence it’s only until 2020, 2 more years. I believe that’s because they swapped to N55 in model year 2011 on everything except the 335is which was built from 2011-2013. And that’s what was the bone of contention when I called BMW NA, I had to work up their chain of command before I found someone willing to support the real intent of their HPFP warranty for the N54 vice the exact way it’s currently worded.
Bruce
21 GMC Sierra - mine
16 X5 M-Sport - wife
11 M3 - 1st son
04 Tundra - 2nd son
17 X1 M-Sport - daughter
Former (mo/yr sold):
15 335xi M-Sport (8/18)
11 335is (8/17)
11 X5 AW/blk (11/15)
04 330xi blk/gray (7/15)
06 ZHP SGM/blk (6/15)
08 335xi blue/blk (4/15)
04 ZHPci MB/blk (2/14)
04 ZHPcic IR/Alc (10/13)
01 540iT anthra/blk (7/13)
04 ZHPci TIAG/blk (9/12)
03 540i M-Sport (9/12)
01 325ci (3/12)
02 325iT 5MT (10/11)
05 ZHPci (7/11)
03 330cic (2/11)
00 323ci (10/10)
So...not reliable at all. Got it. Carry on.
--Wes--
04 330i ZHP Oxford Green/Natural Brown
04 330Ci ZHP Silvergrey/Alcantara (RIP)