Kamui Kobayashi was fastest in the #7 Toyota TS050 Hybrid on 1m44.888s when the red flags came out with just under 20 minutes of the one-hour session left to run.

The lattice-work concrete inside the corner curbs started to break up at Turn 3, causing debris to be deposited on the track.

Sebastien Buemi was second fastest on a 1m45.166s in the the #8 Toyota when the stoppage came.

The two Porsches were third and fourth fastest, Brendon Hartley's 1m45.529s in the #2 919 Hybrid leading the way for the German manufacturer.

Hartley subsequently pitted early on after experiencing gearshift problems, the car staying in the garage undergoing repairs for the remainder of the session.

G-Drive Racing Oreca-Gibson 07 shared by Nico Muller, Roman Rusinov and Leo Roussel led the LMP2 class with a 1m50.162s.

That put him nearly nine tenths up on the best of the Rebellion Orecas driven by Bruno Senna, Nicolas Prost and Julien Canal.

Aston Martin ended the curtailed session fastest in GTE Pro, as Marco Sorensen became the first GTE driver to break the two-minute barrier with a 1m59.836s aboard the best of the Aston Martin Vantage GTEs.

That was enough to put him six tenths up on the #67 Ganassi Ford GT of Andy Priaulx and Harry Tincknell, which ended up on a 2m00.451s.

Miguel Molina was fastest in his Spirit of Race Ferrari 488 in the GTE Am class.

Shanghai, WEC FP3

Pos.	#	Drivers	Car	Class	Time	Gap
1	7	Kamui Kobayashi Mike Conway Jose Maria Lopez	Toyota TS050 Hybrid	LMP1	1'44.888
2	8	Anthony Davidson Kazuki Nakajima Sébastien Buemi	Toyota TS050 Hybrid	LMP1	1'45.166	0.278
3	2	Timo Bernhard Brendon Hartley Earl Bamber	Porsche 919 Hybrid	LMP1	1'45.529	0.641
4	1	Andre Lotterer Neel Jani Nick Tandy	Porsche 919 Hybrid	LMP1	1'46.223	1.335
5	26	Roman Rusinov Leo Roussel Nico Müller	Oreca 07	LMP2	1'50.162	5.274
6	31	Bruno Senna Julien Canal Nicolas Prost	Oreca 07	LMP2	1'50.195	5.307
7	38	Oliver Jarvis Ho-Pin Tung Thomas Laurent	Oreca 07	LMP2	1'50.665	5.777
8	13	Nelson Piquet Jr. David Heinemeier Hansson Mathias Beche	Oreca 07	LMP2	1'50.751	5.863
9	36	Nicolas Lapierre Andre Negrao Gustavo Menezes	Alpine A470	LMP2	1'51.088	6.200
10	25	Vitaly Petrov Simon Trummer Roberto Gonzalez	Oreca 07	LMP2	1'51.307	6.419
11	24	Jean-Eric Vergne Ben Hanley Matt Rao	Oreca 07	LMP2	1'51.673	6.785
12	37	David Cheng Tristan Gommendy Alex Brundle	Oreca 07	LMP2	1'52.074	7.186
13	28	François Perrodo Emmanuel Collard Matthieu Vaxiviere	Oreca 07	LMP2	1'53.612	8.724
14	95	Marco Sorensen Nicki Thiim	Aston Martin Vantage	LMGTE PRO	1'59.836	14.948
15	67	Harry Tincknell Andy Priaulx	Ford GT	LMGTE PRO	2'00.451	15.563
16	92	Michael Christensen Kevin Estre	Porsche 911 RSR	LMGTE PRO	2'00.575	15.687
17	51	James Calado Alessandro Pier Guidi	Ferrari 488 GTE	LMGTE PRO	2'01.098	16.210
18	66	Stefan Mücke Olivier Pla	Ford GT	LMGTE PRO	2'01.289	16.401
19	71	Sam Bird Davide Rigon	Ferrari 488 GTE	LMGTE PRO	2'01.343	16.455
20	91	Richard Lietz Frédéric Makowiecki	Porsche 911 RSR	LMGTE PRO	2'01.361	16.473
21	97	Darren Turner Jonathan Adam	Aston Martin Vantage	LMGTE PRO	2'01.861	16.973
22	54	Francesco Castellacci Miguel Molina Thomas Flohr	Ferrari 488 GTE	LMGTE AM	2'01.924	17.036
23	61	Matt Griffin Mok Weng Sun Keita Sawa	Ferrari 488 GTE	LMGTE AM	2'01.992	17.104
24	98	Pedro Lamy Paul Dalla Lana Mathias Lauda	Aston Martin Vantage	LMGTE AM	2'02.223	17.335
25	77	Christian Ried Matteo Cairoli Marvin Dienst	Porsche 911 RSR (991)	LMGTE AM	2'03.065	18.177
26	86	Khaled Al Qubaisi Ben Barker Nick Foster	Porsche 911 RSR (991)	LMGTE AM	2'03.524	18.636