This is a N20 & N26 Timing Chain Repair Kit developed by Rein/CRP Automotive - and draws on their extensive and deep expertise as one of the leading suppliers of parts solutions in the automotive industry (especially with DIY and independent shops).
This timing chain kit for 2012-2016 BMW 228i/328i/428i/528i and Z4 28i RWD models builds on the kit of factory parts from BMW but includes additional parts requested by CRP's network of DIY installers and technicians. CRP provides a more comprehensive and complete solution than other timing chain kits on the market. Each kit contains over 30 pieces, providing a true “job in a box” overhaul package.
Kit contents:
1x11318648732, engine timing chain
1x11317592877, lower timing chain guide rail (& chain tensioner)
1x11317592850, upper timing chain guide rail (slide rail)
1x11318685091, timing chain tensioner
2x07129903192, upper guide rail bolts, M6x35
2x11317584170, guide rail bearing bolts w/ threadlocker
1x11317592878, guide rail bearing bolts w/o threadlocker
1x11317502048, cylinder head screw plug w/ washer
2x11117558632, engine block screw plugs w/ washers
1x11317603944, crankshaft sprocket
1x11217614270, crank bolt
1x11237600595, crank bolt washer (MT only)
1x11118618864, crank seal
1x11658612575, wastegate hardware kit
1x11127588418, valve cover gasket
1x11127588417, air breather hose
1x11127507217, vacuum pump seal
1x11377502022, Valvetronic actuator seal
1x13537585426, high pressure fuel feed pipe
2x13517632572, HPFP mounting screws w/ threadlocker M6x25
3x07129903926, belt tensioner bolts M6x30
1x11137627512, oil pan gasket
3x07119905400, oil level sensor bolts
2x11137603830, oil pan bolts (with threadlocker)
20x11137603833, oil pan bolts
Rein/CRP offers two levels of N20 timing chain kits - Select and Select Plus. Both kits include all of the pieces related to timing chain replacement, including new rails, tensioners, gaskets, and hardware. As well as some related “while you're in there parts”. The Plus kit adds the lower chain for the oil pump and other related components. Removing the oil pan is required for the Plus kit.
Rein and CRP are front-line suppliers of original equipment, private label, and in-house engineered replacement parts. Rein replacement products meet or exceed all of BMW's original design, fitment, and performance requirements and they carry out testing with ISO and German TUV for quality control. Rein parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. All parts in this kit have a two year warranty.
Only For RWD (Rear Wheel Drive) Models
About N20 Timing Chain Problems
The primary symptom of a timing chain problem is a whining noise while the engine is revved. Another telltale sign is excessive wear on the chain and the guides. You can have a peek at the chain and upper guide by removing the oil cap and looking through the oil fill hole on the valve cover. Bright spots or polishing on the chain links is a sign of wear.
Replacement of these requires the front timing covers, oil pan, and top valve cover to be removed. However, due to the depth of the job and intricacies with the timing systems (VANOS), only technicians with special tools should perform this work. While very complete there are additional items that can/should be replaced so additional parts may be required.
Manual Transmission note: the front crank hub had two versions, with laser anti-slip etching or with a separate anti-slip grip disc (washer). This kit includes a new grip disc but it can only be used with a non-etched crank hub. Do not mix a grip disc with a laser-etched hub!
Don't forget to order an oil change kit! See below for a BimmerWorld recommended Inspection 1 Oil Change Package featuring Red Line full-synthetic oil and an OEM oil filter.
BMW Fitments:
2 Series
F22 / F23 (2014-2021) > 228i
3 Series
F30 / F31 / F34 (2012-2019) > 320i
F30 / F31 / F34 (2012-2019) > 328i
4 Series
F32 / F33 / F36 (14-20) > 428i
5 Series
F10 / F11 (11-16) > 528i N20 (2012-2016)
X1 Series
E84 X1 (2013-2015) > X1 28i
Z Series
E89 Z4 (2009-2016) > Z4 sDrive28i