Notes: Always replace gaskets and self-locking nuts.
After servicing and repairing the exhaust system, check that the system is installed freely, without stress, with sufficient clearance relative to the body elements.
To facilitate the subsequent unscrewing of the nuts and bolts securing the system, lubricate them with Liqui Moly LM-508-ASC high-temperature paste.
Before re-assembling the elements of the exhaust system, clean their joint with sandpaper from the remnants of sealant and rust.
The connector in the front exhaust pipe must not be bent more than 10°, otherwise it will be damaged.
The rear and center mufflers are made in the form of a single unit, however, each of them can be replaced separately.
Tighten the clamp fastening nuts evenly to a torque of 40 Nm.
Notes: Use a new gasket when installing.
The rear and center mufflers are made in the form of a single unit, however, each of them can be replaced separately.
Tighten the clamp fastening nuts evenly up to a torque of 40 Nm.
Pic. 5.3–13. Exhaust system for vehicles with diesel engines: 1 - suspension; 2 - bracket; 3 - bolt, 25 Nm; 4 - catalytic converter; 5 - nut, 25 Nm; 6 - gasket; 7 - bolt, 25 Nm; 8 - receiving exhaust pipe; 9 - gasket; 10 – a knee of a final collector; 11 - nut, 25 Nm; 12 – reception exhaust pipe with a catalytic converter; 13 - front clamp; 14 - nut, 40 Nm; 15 - nut, 25 Nm; 16 - bracket; 17 - suspension; 18 - rear muffler; 19 - rear clamp; 20 - nut, 40 Nm; 21 - nut, 25 Nm; 22 - suspension; 23 - central muffler
Pic. 5.3–14. Exhaust system for vehicles with diesel engines, two catalytic converters and a turbocharger: 1 - suspension; 2 - bracket; 3 - bolt, 25 Nm; 4 - catalytic converter; 5 - nut, 25 Nm; 6 - gasket; 7 - bolt, 25 Nm; 8 - receiving exhaust pipe; 9 - gasket; 10 - primary converter; 11 - nut, 25 Nm; 12 - turbocharger flange; 13 - nut, 25 Nm; 14 – reception exhaust pipe with a catalytic converter; 15 - front collar; 16 - nut, 40 Nm; 17 - nut, 40 Nm; 18 - bracket; 19 - suspension; 20 - rear muffler; 21 - rear clamp; 22 - nut, 40 Nm; 23 - nut, 25 Nm; 24 - installation (suspension); 25 - central muffler
Pic. 5.3–15. Measuring the distance between the center muffler and the cross beam: a = (19±3) mm
When installing an exhaust system, the free distance between the center muffler and the cross member must be (19±3) mm (pic. 5.3–15).
The distance between the front pipes of the central muffler and the cross beam in the free state should be 31.5 mm on front-wheel drive vehicles and 29.5 mm on all-wheel drive vehicles.
Connect the new muffler section to the old one and connect them with a clamp, positioning it in such a way that the lower edge of its fastening bolt is at the level of the muffler pipe.
Pic. 5.3–16. Exhaust pipe suspension elements to body elements on front-wheel drive vehicles with a manual transmission: 1 - bolt, 25 Nm; 2 - bracket; 3 - self-locking nut, 25 Nm; 4 - bolts, 25 Nm; 5 - bushing; 6 - bolt, 25 Nm; 7 - plate; 8 - spring; 9 - buffer; 10 - earring; 11 - bushing
On front-wheel drive and all-wheel drive vehicles, the exhaust pipe suspensions to the body elements differ in design (pic. 5.3–16, 5.3–17, 5.3–18).
Pic. 5.3–17. Exhaust pipe suspension elements to body elements on front-wheel drive vehicles with automatic transmission: 1 - bolt, 25 Nm; 2 - washers; 3 - bracket; 4 - bolt, 25 Nm; 5 - bushing; 6 - buffer; 7 - earring, 8 - self-locking nut, 25 Nm; 9 - bolt, 25 Nm; 10 - plate; 11 - spring; 12 - sleeve
Pic. 5.3–18. Exhaust pipe suspension elements to body elements on all-wheel drive vehicles with automatic transmission: 1 - bolt, 25 Nm; 2 - self-locking nut, 25 Nm; 3 - bracket; 4 - bolt, 25 Nm; 5 - bolt, 25 Nm; 6 - bushing; 7 - bushing; 8 - buffer; 9 - earring; 10 - spring; 11 - washer
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