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Parts for your 2017 Toyota Avensis-Oil seals

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Nulon Engine Oil Stop Leak 300ml - ESL
30%OFF

Nulon Engine Oil Stop Leak 300ml - ESL

$27.30
$39
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MaxiTrac 47 Piece Tyre Repair Kit
30%OFF

MaxiTrac 47 Piece Tyre Repair Kit

$48.30
$69
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Castrol Petrol Engine Flush 300ml - 3441131
55%OFF

Castrol Petrol Engine Flush 300ml - 3441131

$12
$23
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Castrol Diesel Engine Flush 300ml - 3441133
55%OFF

Castrol Diesel Engine Flush 300ml - 3441133

$12
$23
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Explore 4WD & Adventure

Nulon Radiator Stop Leak 300mL - R50
30%OFF

Nulon Radiator Stop Leak 300mL - R50

$14.70
$21
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Big Wipes Heavy-Duty Wipes 80 Pack - 2420
20%OFF

Big Wipes Heavy-Duty Wipes 80 Pack - 2420

$32.80
$41
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LIQUI MOLY Engine Flush Plus 300ml - 2784

LIQUI MOLY Engine Flush Plus 300ml - 2784

$27
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Penrite Engine Flush 375ml - ADEF375

Penrite Engine Flush 375ml - ADEF375

$27
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Penrite Radiator Flush Additive 375mL - ADRF375

Penrite Radiator Flush Additive 375mL - ADRF375

$27
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K-SEAL Ultimate Head Gasket Repair - K3501

K-SEAL Ultimate Head Gasket Repair - K3501

$102
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LIQUI MOLY Engine Oil Resealer 300ml - 2782

LIQUI MOLY Engine Oil Resealer 300ml - 2782

$29
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Penrite Lifter and Tappet Fix 375ml - ADLTF375

Penrite Lifter and Tappet Fix 375ml - ADLTF375

$31
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Rislone Rear Main Seal Repair 500ml - 44240

Rislone Rear Main Seal Repair 500ml - 44240

$38
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Penrite Engine Oil Stop Leak 375ml - ADESL375

Penrite Engine Oil Stop Leak 375ml - ADESL375

$24
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Penrite Fork Oil 10 1L - MCFO10001

Penrite Fork Oil 10 1L - MCFO10001

$48
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Penrite Engine Stop Smoke 375mL - ADESS375

Penrite Engine Stop Smoke 375mL - ADESS375

$19
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Lucas Oil Engine Oil Stop Leak 946ml - 10278

Lucas Oil Engine Oil Stop Leak 946ml - 10278

$30
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Rislone One Seal Stop Leak 325ml - 44334

Rislone One Seal Stop Leak 325ml - 44334

$21
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Sealwell Coolant System Conditioner 2 Pack - T51012

Sealwell Coolant System Conditioner 2 Pack - T51012

$27
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CRC Dry Glide with PTFE 150g - 3040
CRC

CRC Dry Glide with PTFE 150g - 3040

$34
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Penrite Fork Oil 5 1L - MCFO05001

Penrite Fork Oil 5 1L - MCFO05001

$38
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Rislone Radiator Stop Leak 325mL - 41196

Rislone Radiator Stop Leak 325mL - 41196

$20
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Rislone Head Gasket Fix 680g - 41111

Rislone Head Gasket Fix 680g - 41111

$101
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Rislone Aluminium Radiator Stop Leak 479g - 41186

Rislone Aluminium Radiator Stop Leak 479g - 41186

$32
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CRC Silicone Grease 75ml - 3036
CRC

CRC Silicone Grease 75ml - 3036

$30
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Lucas Power Steering Stop Leak 355mL - 10008

Lucas Power Steering Stop Leak 355mL - 10008

$44
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CRC Syntex 400ml - 3035
CRC

CRC Syntex 400ml - 3035

$28
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Rislone Transmission Fix 340ml - 44515

Rislone Transmission Fix 340ml - 44515

$55
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Selleys Instant Gasket GS75 75g - 100177/AF05

Selleys Instant Gasket GS75 75g - 100177/AF05

$27
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T&E Tools Oil Seal & O-Ring Pick Set 2pc - 2-7103

T&E Tools Oil Seal & O-Ring Pick Set 2pc - 2-7103

$22
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Rislone Engine Oil Burning & Leak Repair 500ml - 44223

Rislone Engine Oil Burning & Leak Repair 500ml - 44223

$81
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Rislone Engine Oil Stop Leak Additive 325ml - 44209

Rislone Engine Oil Stop Leak Additive 325ml - 44209

$20
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Showing 1 - 39 of 76 products

2017 Toyota Avensis oil seals — what they do and when to replace them

Based on Toyota’s European Repair Manual for the T27 Avensis (2015–2018 facelift) and the Toyota Electronic Parts Catalogue for the 1.6/1.8 Valvematic petrol and 1.6/2.0 D-4D diesel variants, this model absolutely uses multiple oil seals. The factory literature lists front and rear crankshaft oil seals, camshaft oil seals, and transaxle/drive shaft oil seals, with Toyota service bulletins and diagnostic procedures covering oil leak checks and seal replacement. So oil seals are relevant, fitted, and part of proper servicing for a 2017 Toyota Avensis.

On this Avensis, oil seals keep engine and gearbox fluids where they belong while shafts rotate at speed. Think front and rear crankshaft seals at each end of the crank, camshaft seals behind the timing cover, and axle and selector shaft seals in the transaxle. They prevent leaks that can make a mess, drop fluid levels, contaminate the clutch, or soften rubber components.

They’re not a scheduled replacement item like filters or spark plugs. Instead, they’re checked at routine services (every 10,000–15,000 km typical in AU/NZ) and replaced when there’s seepage or an active leak. Smart times to renew them are when related work is already happening: clutch replacement (rear main seal), timing cover or chain work (front crank and cam seals), or driveshaft removal (transaxle output seals). That way, labour overlaps and saves a few dollars.

  • Common signs it’s time: oil mist around the crank pulley or timing cover, oil weeping at the bellhousing, clutch slip from oil contamination, drips at driveshafts, burning-oil smell on hot shutdown, or unexplained oil level drop.
  • Good practice: keep engine breathers/PCV system clear so crankcase pressure doesn’t push past seals, use the specified engine oil grade, inspect for nicks on shaft surfaces before fitting new seals, and seat new seals square with the correct driver tool.

A qualified tech will follow Toyota’s repair manual specs for seal depth, surface prep, and any sealant where the housing meets the block or cover. Genuine or high‑quality aftermarket seals matched to the engine code (e.g., 1ZR/2ZR petrol, 1WW/1AD diesel) are worth it for long life. Left to leak, a small weep can become a bigger job—oil on a serpentine belt, a slipping clutch, or low gearbox fluid isn’t worth the risk.

Bottom line: the Avensis relies on its oil seals, and while they don’t need routine replacement, regular inspection and timely renewal keeps it tidy and reliable on Aussie and Kiwi roads.

Popular questions about 2017 Toyota Avensis oil seals

Which oil seals are most likely to leak on a 2017 Toyota Avensis?

Typically the front crankshaft seal (behind the crank pulley), the rear main seal (between engine and gearbox), and the transaxle output/drive shaft seals show up first. Age, heat, and crankcase pressure are the usual culprits. A quick look under the bonnet and around the bellhousing during services will catch small weeps before they get messy.

Do oil seals have a replacement interval on this model?

No fixed interval. They’re replaced when there’s evidence of leakage or when access is convenient during related work like a clutch job or timing cover service. Have them checked at each service, if there’s fresh oil trace, plan the repair rather than waiting for a drip on the driveway.

Is it safe to drive with a minor oil seal leak?

A short drive is usually fine if fluid levels are monitored, but it shouldn’t be left for long. Leaks can contaminate the clutch, soften belts, or lower engine/trans fluid levels. It’s best to book it in and sort the seal before a small issue turns into an expensive fix.

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