VolvoC70 Conv2004Overview/volvo/c70-conv/2004/base/

2004 Volvo C70 Conv

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2004 C70 Conv.

Body PASSENGER CAR

Classified as a passenger car, the 2004 Volvo C70 Conv requires 6.1 quarts of 5W-30 or 10W-30 API oil for its engine. This model year presents a distinct reliability profile marked by zero recalls alongside 15 total owner complaints, where the electrical system stands as the top complaint area. In terms of reliability history, this combination indicates a vehicle with no mandated safety corrections but a specific concentration of user-reported issues to investigate.

Model year2004200320022001200019991998

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity6.1 qtOEM · verified
Engine oil type5W-30 / 10W-30 APIOEM · verified
Lug nut torque81 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 48 · 600 CCA battery, OE oil filter 1275810. Note the factory battery and front wiper blades are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 48 · 600 CCAOEM · verified

OE service part numbers OEM · verified

Engine oil filter1275810
Engine air filter9186262
Fuel filter30620512
Battery9459948 discontinued
Front wiper blades31276592 discontinued
Thermostat31293700
Cabin air filter9171296

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length185.8 in
Overall width71.7 in
Overall height56.3 in
Wheelbase104.7 in
Curb weight3448 lb
Track (front / rear)59.8 / 59.8 in
Weight distribution (front / rear)59/41

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 6.1 qt of 5W-30 / 10W-30 API engine oil, DOT 4 brake fluid. Torque lug nuts to 81 ft-lbs, the oil drain plug to 28.0 ft-lbs. The firing order is 1-2-4-5-3.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity8
Brake FluidDOT 4
Engine Oil5W-30 · API · 10W-30
Engine Oil Capacity6.1 qt
Engine Oil5W-30 · API · 10W-30
Engine Oil Capacity6.1 qt
Manual Transmission FluidVolvo part number 1161745

Engine torques

Crankshaft Pulley and/or Damper BoltsCenter bolts, step 1: 133 ft-lbs
Crankshaft Pulley and/or Damper Bolts133 ft-lbs
Intake Manifold to Engine Bolts15 ft-lbs
Exhaust Manifold to Cylinder Head Bolts19 ft-lbs
Engine Oil Pan Drain Plug24.0 ft-lbs
Engine Oil Pan Drain Plug28.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs7 ft-lbs

Chassis torques

Lug Nuts81 ft-lbs
Front Wheel Hub37 ft-lbs

Ignition

Cylinder Firing Order1-2-4-5-3
Curb Idle Speed (No Load)850 rpm
Curb Idle Speed Variance (No Load)50 rpm
Ignition Coil Primary Resistance.50-1.5 ohms
Ignition Coil Secondary Resistance8000-9000 ohms
Ignition Coil Primary Resistance.05-1.5 ohms
Ignition Coil Secondary Resistance8000-9000 ohms
Spark Plug Gap0.020-0.030 in

Battery & A/C

RefrigerantR134a
Refrigerant CapacityCold market vehicles, 1.80; warm market vehicles, 1.70; refer to decal on lefthand suspension tower to determine vehicles market type. lbs
Oil TypeVolvo part No. 11 61 407-0 or equivalent.
Oil Capacity6.76 oz
Standard BCI Group Number48
Standard BCI Cranking Performance600 cca
Standard BCI Group Number48
Standard BCI Cranking Performance600 cca

Brakes

Torque Caliper to Bracket22 ft-lbs
Torque to Knuckle74 ft-lbs / 44 ft-lbs
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Rotor Runout Limit0.0016 in / 0.0031 in
Rotor Minimum Machining0.937 in
Rotor Discard at or Under0.906 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115 ft. lbs., Step 2: 9015 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
133 ft. lbs., Step 2: 6533 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 60,000 mi; coolant every 15,000 mi. The big-interval services (every 15,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miBrake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect) · Driveshaft (inspect) · Driveshaft U-Joint (inspect) · Engine Oil (drain & refill)
Every 15,000 miBattery (inspect) · Brake Hydraulic System (drain, refill & bleed) · Brake Shift Interlock Solenoid (inspect) · Cabin Air Filter (replace) · Door Hinge (lubricate) · Engine Coolant System (leak inspection)
At 22,500 miTire & Wheel Assembly (rotate)
Every 30,000 miBrake Line (inspect) · Fuel Line (inspect)
Every 37,500 miEngine Air Filter Element (replace)
Every 45,000 miPCV Hose (inspect)
At 60,000 miCV Joint Boot (inspect) · Driveshaft (inspect) · Driveshaft U-Joint (inspect) · Exhaust System (Complete) (inspect) · Steering System (inspect) · Suspension System (inspect)
Every 60,000 miSpark Plugs (replace)
Every 75,000 miTiming Belt (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 2004 Volvo C70 Conv lead in one area — the electrical system, 3 of 15 reports (20%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 1 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the electrical system pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

0
Open recalls
NHTSA campaigns
165
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
15
Owner complaints
1 involved a crash · 0 a fire

Owner complaints filed with NHTSA, by component

All 15 complaints on record, top 8 components.

Electrical System3
Power Train3
Vehicle Speed Control2
Air Bags,Electronic Stability Control (Esc)1
Air Bags1
Power Train,Engine1
Air Bags,Structure,Wheels1
Electrical System,Fuel/Propulsion System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 165 bulletins on record with NHTSA.

BulletinDateComponentSummary
37809.1.12026-04-07Unknown Or OtherThis is a TJ text only - The purpose of this TJ is to be a master reference list to…
192452025-12-06Unknown Or OtherThis is a Technical Journal. Vehicle type and platform identification.
85012025-04-10Exterior LightingThis is a Technical Journal: Remote connection, BOMGAR application. Before joining a…
S103032025-02-21Unknown Or OtherVolvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has…
S103032025-02-13Unknown Or OtherVolvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific C70 Conv. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2004 C70 Conv take?

6.1 qt of BELOW 86 degrees F: 5W-30 API, -4 degrees F TO 104 degrees F: 10W-30 API, per the factory manual.

Does the 2004 C70 Conv have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.